Placement Papers - CDAC

Centre for Development of Advanced Computing
CDAC PAPER - APR 2004
Posted by :
Mahalekshmi
(32)
Fundamentals of Programming
      
       27 The programming language that was designed for specifying algorithm
       Address
       ASCII
       ALGOL
       None of these options
      
28 _____ contains the addresses of all the records according to the contents of the field designed as the record key.
       Index   <------ans
       Subscript
       Array
       File
      
       29 _________ symbol is used for Processing of data.
       Oval
       Parallelogram     <------ans
       Rectangle
       Diamond
      
       30 __________ is the analysis tool used for planning program logic
       Protocol
       None of these options
       PROLOG
       Pseudocode
      
       31 Machine language has two part format the first part is__________ and the second part is __________
       OPCODE,OPERAND<------ans
       OPERAND,OPCODE
       DATA CODE,OPERAND
       OPERAND,CODEOP
      
       32 Language Primarily used for internet-based applications
       ADA
       C++
       JAVA           <------ans
       FORTRAN
      
       33 _________ is a point at which the debugger stops during program execution and awaits a further command.
       Memory Dump
       Watch point           <------ans
       Break point
       None of these options
      
       34 ________do not contain any program logic and are ignored by the language processor.
       Protocol
       Virus
       Comment
       None of these options
      
       35 The component of data base management system is ________
       Data definition Language
       Data manipulation Language
       Data definition Language and Data manipulation Language
       None of these options
      
       36 The quality of Algorithm is judged on the basis of_________
       Time requirement
       Memory Requirement
       Accuracy of solution
       All of these options               <------ans
      
       37 Advantages of using flow charts is
       Effective Analysis
       Efficient Coding
       Time consuming
       Effective Analysis and Efficient Coding        <------ans

 Programming in C
      
       38 The Real constants in C can be expressed in which of the following forms
       Fractional form only
       Exponential form only
       ASCII form only
       Both Fractional and Exponential forms<------ans
      
       39 The program, which translates high-level program into its equivalent machine language program, is called
       Transformer
       Language processor
       Converter
       None of these options<------ans
      
       40 Consider the following statements.
       i.Multiplication associates left to right
       ii.Division associates left to right
       iii.Unary Minus associates right to left
       iv.subtraction associates left to right
       All are true<------ans
       only i and ii are true
       all are false
       only iii and iv are true
      
       41 What will be the value of variable a in the following code?
       unsigned char a;
       a = 0xFF + 1;
       printf("%d", a);
       0xFF
       0x100
       0    <------ans
       0x0
      
       42 What is the output of the following program ?
       #include <stdio.h>
       void main()
       {
       printf(" 10!=9 : %5d",10!=9);
       }
       1  <------ans
       0
       Error
       None of these options
      
       43 #include<stdio.h>
       void main()
       {
       int x=10;
       (x<0)?(int a =100):(int a =1000);
       printf(" %d",a);
       }
       Error  <------ans
       1000
       100
       None of these options
      
       44 Which of the following shows the correct hierarchy of arithmetic operations in C
       (), **, * or /, + or -
       (), **, *, /, +, -
       (), **, /, *, +, -
       (), / or *, - or + <------ans
      
       45 What is the output of the following code?
       #include<stdio.h>
       void main()
       {
       int a=14;
       a += 7;
       a -= 5;
       a *= 7;
       printf(" %d",a);
       }
       112   <------ans
       98
       89
       None of these options
      
       46 What is the output of the following code?
       #include<stdio.h>
       #define T t
       void main()
       {
  char T = \'T\';
  printf(" %c %c ",T, t);
       }
       Error
       T t
       T T  <------ans.I did\'nt get d correct ans
       t t
      
       47 The statement that prints out the character set from A-Z, is
       for( a = \'z\'; a < \'a\'; a = a - 1)
       printf("%c", &a);
       for( a = \'a\'; a <= \'z\'; a = a + 1)
       printf("%c", &a);
       for( a = \'A\'; a <= \'Z\'; a = a + 1)  <-----ans
       printf("%c", a);
       for( a = \'Z\'; a <= \'A\'; a = a + 1)
       printf("%c", a);
      
       48 The statement which prints out the values 1 to 10 on separate lines, is
       for( count = 1; count <= 10; count = count + 1) printf("%d ", count);
       for( count = 1; count < 10; count = count + 1) printf("%d ", count);<------ans
       for( count = 0; count <= 9; count = count + 1) printf("%d ", count);
       for( count = 1; count <> 10; count = count + 1) printf("%d ", count);
      
       49 What does the term \'call-by-reference\' refer to?
       Passing a copy of a variable into a function.
       Passing a pointer to a variable into a function. <------ans
       Choosing a random value for a variable.
       A function that does not return any values.
      
       50 What is the output of the following code?
       #include<stdio.h>
       void swap(int&, int&);
       void main()
       {
  int a = 10,b=20;
  swap (a++,b++);
  printf(" %d %d ",a, b);
       }
       void swap(int& x, int& y)
       {
  x+=2;
  y+=3;
       }
       14, 24
       11, 21  <------ans
       10, 20
       Error
      
       51 What is the output of the following program code
       #include<stdio.h>
       void abc(int a[])
       {
       a++;
       a[1]=612;
       }
       main()
       {
       char a[5];
       abc(a);
       printf("%d",a[4]);
       }
       100
       612
       Error        <------ans
       None of these options
      
       52 which of the following is true about recursive function
       i. it is also called circular definition
       ii. it occurs when a function calls another function more than once
       iii. it occurs when a statement within the function calls the function itself
       iv. a recursive function cannot have a return statement within it"
       i and iii<------ans
       i and ii
       ii and iv
       i, iii and iv
      
       53 What will happen if you assign a value to an element of an array whose subscript exceeds the size of the array?
       The element will be set to 0
       Nothing, its done all the time
       Other data may be overwritten
       Error message from the compiler
      
       54 What is the output of the following code?
       #include<stdio.h>
       void main()
       {
       int arr[2][3][2]={{{2,4},{7,8},{3,4},}, {{2,2},{2,3},{3,4}, }};
       printf(" %d",**(*arr+1)+2+7);
       }
       16    <------ans
       7
       11
       Error
      
55 If int s[5] is a one dimensional array of integers, which of the following refers to the third element in the array?
       *( s + 2 )     <------ans
       *( s + 3 )
       s + 3
       s + 2
      
       57 #include"stdio.h"
       main()
       {
       int *p1,i=25;
       void *p2;
       p1=&i;
       p2=&i;
       p1=p2;
       p2=p1;
       printf("%d",i);
       }
       The output of the above code is :
       Program will not compile   <------ans
       25
       Garbage value
       Address of I
      
       58 What is the output of the following code ?
       void main()
       {
       int i = 100, j = 200;
       const int *p=&i;
       p = &j;
       printf("%d",*p);
       }
       100
       200          <------ans
       300
       None of the above
      
       59 void main()
       {
       int i=3;
       int *j=&i;
       clrscr();
       printf("%d%d",++*j,*(&i));
       }
       What is the output of this program?
       3 3
       4 3          <------ans
       4,address of i printed
       Error:Lvalue required
      
       60 What is the output of the following code?
       #include<stdio.h>
       void main()
       {
       int arr[] = {10,20,30,40,50};
       int *ptr = arr;
       printf(" %d %d ",*ptr++,*ptr);
       }
       10 20
       10 10        <------ans
       20 20
       20 10
      
       61 Which of these are reasons for using pointers?
       1.To manipulate parts of an array
       2.To refer to keywords such as for and if
       3.To return more than one value from a function
       4.To refer to particular programs more conveniently
       1 & 3         <------ans
       Only 1
       Only 3
       All of the above
      
       62 struct num
       {
       int no;
       char name[25];
       };
       void main()
       {
       struct num n1[]={{25,"rose"},{20,"gulmohar"},{8,"geranium"},{11,"dahalia"}};
       printf("%d%d" ,n1[2].no,(*&n1+2)->no+1);
       }
       What is the output of this program?
       8 8
       8 9       <------ans
       9 8
       8 , unpredictable
      
       63 During initializing a union
       Only one member can be initialised.
       All the members will be initialised.
       Initialisation of a union is not possible.<------ans
       None of these options
      
       64 Self referential structure is one
       a. Consisting the structure in the parent structure
       b. Consisting the pointer of the structure in the parent structure
       Only a
       Only b
       Both a and b
       Neither a nor b
      
       65 Individual structure member can be initialized in the structure itself
       True
       False
       Compiler dependent
       None of these options
      
       66 Which of the following is the feature of stack?
       All operations are at one end
       It cannot reuse its memory
       All elements are of different data types
       Any element can be accessed from it directly<------ans<------ans
      
       67 When stacks are created
       Are initially empty<------ans
       Are initialized to zero
       Are considered full
       None of these options
      
       68 What is time required to insert an element in a stack with linked implementation?
       O(1)
       O(log2n)<------ans<------ans
       O(n)
       O(n log2n)
      
       69 Which of the following is the feature of stack?
       All operations are at one end
       It cannot reuse its memory
       All elements are of different data types
       Any element can be accessed from it directly<------ans
      
       70 Time taken for addition of element in queue is
       O(1)
       O(n)
       O(log n)<------ans
       None of these options
      
       71 When is linear queue said to be empty ?
       Front==rear
       Front=rear-1
       Front=rear+1
       Front=rear<------ans
      
       72 When queues are created
       Are initially empty<------ans
       Are initialized to zero
       Are considered full
       None of the above
      
       73 What would be the output of the following program?
       #include <stdio.h>
       main()
       {
       printf(" %c", "abcdefgh"[4]);
       }
       abcdefgh
       d
       e        <------ans
       error
      
74 Select the correct C code which will read a line of characters (terminated by a ) from input_file into a character array called buffer.
       NULL terminate the buffer upon reading a .
int ch, loop = 0; ch = fgetc( input_file ); while( (ch != \' \') && (ch != EOF) ) { buffer[loop] = ch; loop++; ch = fgetc( input_file ); } buffer[loop]= NULL;
int ch, loop = 0; ch = fgetc( input_file ); while( (ch = " ") && (ch = EOF) ) { buffer[loop] = ch; loop--; ch = fgetc( input_file ); } buffer[loop] = NULL;
int ch, loop = 0; ch = fgetc( input_file ); while( (ch <> " ") && (ch != EOF) ) { buffer[loop] = ch; loop++; ch = fgetc( input_file ); } buffer[loop] = -1;
       None of the above
      
       75 What is the output of the following code ?
       void main()
       {
       int a=0;
       int b=0;
       ++a == 0 || ++b == 11;
       printf(" %d,%d",a,b);
       }
       0, 1
       1, 1      <------ans
       0, 0
       1, 0
      
       76 What is the output of the following program?
       #define str(x)#x
       #define Xstr(x)str(x)
       #define oper multiply
       void main()
       {
       char *opername=Xstr(oper);
       printf("%s",opername);
       }
       opername
       Xstr
       multiply     <------ans
       Xstr
      
       77 What is the output of the following code ?
       #include<stdio.h>
       #include<string.h>
       void main()
       {
       char *a = "C-DAC

       OO Programming Concepts
      
88 The ability to reuse objects already defined, perhaps for a different purpose, with modification appropriate to the new purpose, is referred to as Information hiding.
       Inheritance.
       Redefinition.
       Overloading
      
89 The term given to the process of hiding all the details of an object that do not contribute to its essential characteristics is called _______.
       data-hiding
       packaging
       encapsulation
       abstraction
      
90 Object-oriented technology\'s ____ feature means that a small change in user requirements should not require large changes to be made to the system.
       Abstraction
       Modularity
       Encapsulation
       Modelling
      
       91 An object has _____.
       State
       Behaviour
       Identity.
       All of these options.
      
       92 Which of the following is true:
       Class is an object of an object.
       Class is meta class.
       Class cannot have zero instances.
       None of these options.
      
93 If a derived class object is explicitly destroyed by applying the delete operator to a base-class pointer to the object, the _____ function is automatically called on the object
       Derived-class destructor.
       Base-class destructor.
       Base-class constructor.
       Derived-class constructor.
      
       94 In object orientated programming a class of objects can _____________
       properties from another class of objects
       utilize
       borrow
       inherit
       adapt
      
       95 Contracts are not meant to be used in cases of _______.
       Composition.
\'has-a\' relationship.
\'is-a\' relationship.
       Both Composition and \'has-a\' relationship.
      
       96 Inheritance through interface is called ________
       Implementation inheritance.
       Definition inheritance.
       Delegation inheritance.
       Interface inheritance model.
      
       97 When a class uses dynamic memory, what member functions should be provided by the class?
       An overloaded assignment operator.
       The copy constructor.
       A destructor.
       All of these optionsq
      
       98 ______ means that both the data and the methods which may access it are defined together in the same unit.
       Data hiding.
       Encapsulation
       Data Binding
       None of these options
      
99 The term given to the process of hiding all the details of an object that do not contribute to its essential characteristics is called _____________.
       data-hiding.
       packaging.
       encapsulation.
       grouping
      
       100 Car contains a steering wheel is example of ________
       Composition
       Association
       Composition and Association
       None of these options
      
       101 Can two classes contain member functions with the same name?
       No.
       Yes, but only if the two classes have the same name.
       Yes, but only if the main program does not declare both kinds.
       Yes, this is always allowed.
      
       102 A contract is implemented through.
       Class
       Interface.
       Abstract Class.
       Interface and Abstract Class

English Language Ability
      
Directions:- The given pair of words contains a specific relationship to each other. Select the best pair of choices which expresses the same relationship as the given.
      
       103 IGNOMINY : DISLOYALTY ::
       fame : heroism
       death : victory
       derelict : fool
       martyr : man
      
       104 EXPLOSION : DEBRIS ::
       flood : water
       famine : food
       fire : ashes
       disease : germ
      
       105 Bland : Piquant ::
       inane : relevant
       charlatan : genuine
       slavish : servile
       terse : serious
      
       106 NEGLIGENT : REQUIREMENT ::
       remiss : duty
       cogent :argument
       easy : hard
       careful : position
      
       Directions:- Choose the best word, which is most opposite in the meaning to the given word.
      
       107 FETTER :
       delay
       stretch
       comply
       thrive
      
       108 SEDULOUS :
       rampant
       esoteric
       morose
       indolent
      
       109 SUCCULENT :
       ordinary
       tasteless
       inexpensive
       invigorating
      
       110 DORMANT :
       authoritative
       elastic
       active
       uninteresting
      
       111 COURT :
       reject
       uncover
       infect
       subject
      
Directions:- The given pair of words contains a specific relationship to each other. Select the best pair of choices which expresses the same relationship as the given.
      
       112 INTIMIDATE : FEAR ::
       Maintain : satisfaction
       Astonish : wonder
       Soothe : concern
       Lion : tame
      
       Directions:- Pick out the best choice which can complete the incomplete stem correctly and meaningfully
      
113 It was an extremely pleasant surprise for the hutment-dweller when the Government officials told him that__________
       he had to vacate hutment which he had been unauthorized occupying
       he had been gifted with a furnished apartment in a multistoried building
       he would be arrested for wrongly encroaching on the pavement outside his dwelling
       they would not accede to his request

114 In the closing days of the civil War, President Abraham Lincoln was planning to graciously welcome the defeated confederate states back into the
Union. After Lincoln was assassinated, however, the "Radical Republicans" in Congress imposed martial law in the South, creating resentment that caused problems well into this century. Had Lincoln lived, the history of regional conflict in 20th century America would have been considerably different. All of the following assumptions underline the argument above EXCEPT
The imposition of martial law in the South was primarily responsible for the resentment felt in the South
Had he lived, lincoln would have treated hte defeated South as he had planned Lincoln would have been able to prevent the Radical Republicans in Congress from imposing martial law in the South
Factors other than the imposition of martial law in the South affected the history of regional conflicts in 20th century America
      
115 A politician wrote the following: "I realize there are shortcomings to the questionaire method. However, since I send a copy of the quetionnaire to every home in the district, I believe the results are quite representative.... I think the numbers received are so large that it is quite accurate even though the survey is not done scientifically" Most people who received the questionnaire have replied
Most people in the district live in homes. the questionnaire method of data collection is unscientific. A large, absolute number of replies is synonymous with accuracy
      
116 A worldwide ban on the production of certain ozone-destroying chemicals would provide only an illusion of protection. Quantities of such chemicals, already produced, exist as coolants in millions of refrigerators. When they reach the ozone layer in the atmosphere, their action cannot be halted. So there is no way to prevent these chemicals from damaging the ozone layer further. Which of the following, if true, most seriously weakens the argument above?
It is impossible to measure with accuracy the quantity of ozone-destroying chemicals that exist as coolants in refrigerators.
In modern societies, refrigeration of food is necessary to prevent unhealthy and potentially life-threatening conditions.
Even if people should give up the use of refrigerators, the coolants already in existing refrigerators are a threat to atmospheric ozone.
       The coolants in refrigerators can be fully recovered at the end of the useful life of the refrigerators and reused.
      
117 Every town with a pool hall has its share of unsavory characters. This is because the pool hall attracts gamblers and all gamblers are unsavory. Which of the following, if true cannot be inferred from the above?
       All gamblers are unsavory.
       All pool halls attract gamblers.
       Every town has unsavory characters.
       All gamblers are attracted by pool halls.
      
Directions:- The workweek in a small business is a five-day workweek running from Monday through Friday. In each workweek, activities L,M,N,O and P must all be done.The work is subject to the following restrictions:
      
       L must be done earlier in the week than O and earlier than P
       M must be done earlier in the week than N and earlier than O
       No more than one of the activities can ever be done on any one day
      
       118 Which of the following is an acceptable schedule starting from Monday to Friday?
       L, M, N, O, P         <-------------ans
       M, N, O, N, M
       O, N, L, P, M
       P, O, L, M, L
      
119 In a game, exactly six inverted cups stand side by side in a straight line, and each has exactly one ball hidden under it. The cups are numbered consecutively 1 through 6. Each of the balls is painted a single solid color. The colors of the balls are green, magenta, orange, purple, red, and yellow. The balls have been hidden under the cups in a manner that conforms to the following conditions:
      
       The purple ball must be hidden under a lower-numbered cup than the orange ball.
       The red ball must be hidden under a cup immediately adjacent to the cup under which the magenta ball is hidden.
       The green ball must be hidden under cup 5.
      
Which of the following could be the colors of the balls under the cups, in order from 1 through 6?
       Green, yellow, magenta, red, purple, orange
       Magenta, green, purple, red, orange, yellow
       Magenta, red, purple, yellow, green, orange        <-------------ans
       Orange, yellow, red, magenta, green, purple
      
Directions:- In a group there are five students coded as P Q R S T.Q and R are intelligent in mathematics and geology. P and R are intelligent in mathematics and hindi. Q and S are intelligent in psychology and buddhist studies.T is intelligent in buddhist studies hindi and psychology
      
       120 who is intelligent in psychology, geology and buddhist studies
       Q       <-------------ans
       T
       R
       S
      
       Directions:- The following questions are based on the following situations.
Asha, Babli, Charn, Deepti, Eira, Farha are cousins. No two cousins are of the same age , but all have birth days on the same date in that year .The youngest is 17 years old and the oldest is Eira is 22.Farha is somewhere between Babli and Deepti in age.Asha is older than Babli. Charn is older than Deepti
      
121 If asha is one year older than charn the number of logically possible orderins of all six cousins by increasing age is
       2        <-------------ans( Babli,Asha, Farha, Charn, Deepti, Eira)
       3
       4
       5
      
       122 It is easier to swim in the sea water than in river water because
       sea is vast mass of water
       sea water is generally calm
       the density of sea water is higher than river water  <-------------ans
       they water of sea is cool and greenish
      
123 starting from a point x jayant walked 15metres towards the west he turned to his left and walked 20 metres he then turned to his left and walked 15 metres he then further turned to his right and walked 12 metres how far is jayant from the point x and in which direction? N
       32 metres south                        -
       47 metres east                       W-------E
       42 metres north                        -
       27 metres south  <-------------ans              S
      
124 Rock and roll music started in the 1950s as a young mans medium and rock is still best performed by men in their twenties and thirties. As rock performers grow into their forties and even fifties, they are simply less physically capable of producing the kind of exciting music they did when they were younger. All of the following assumptions underline the argument above EXCEPT:
       As rock performers mature, their performances tend to become less exciting
       Rock music is dominated by male performers
       Women performers have always played a significant role in rock music
       The physical demands of performing rock are better met by the young  <-------------ans
      
       Mathematical Problems
      
       125 Which of the following statements are true, if
       x + y + z = 10 y >= 5 and 4 >= z >= 3
       1. x < z
       2. x > y
       3. x + z <= y
      
       1 only
       2 only
       3 only
       1 and 3 only   <-------------ans
      
       126 The solution of the equation 4 - 5(2y + 4) = 4 is
       -2/5
       8
       4
       -2     <-------------ans
      
       127 When x5 + 1 is divided by (x - 2), the remainder is
       15
       17
       31
       33
      
       128 How many terms of the series -9 , -6 , -3 ,.must be taken such that the sum may be 66?
       11
       13
       9         <-------------ans
       10
      
129 The side of a rectangle are whole numbers. What must their lengths be for the perimeter for the rectangle to be numerically equal to its area?
       3 and 6
       4 and 5
       4 and 6
       5 and 5
      
       130 A path 7 metres wide surrounds a circular lawn whose diameter is 252m. What is the area of path?
       5698 sq.mtrs.
       5000 sq.mtrs.
       5500 sq. mtrs.
       None of these
      
131 If the negative of the sum of two consecutive odd numbers is less than -35, which of the following may be one of the numbers?
       18       <-------------ans
       16
       15
       13
      
132 What is the perimeter of a rectangle that is twice as long as it is wide and has the same area as a circle of diameter 8?
       8(P)1/2
       8P
       12(2P)1/2
       12P
      
133 Towns A and C are connected by a straight highway which is 60 miles long. The straight line distance between town A and town B is 50 miles, and the straight line distance from town B to town C is 50 miles. How many miles is it from town B to the point on the highway connecting town A and C which is closest to town B?
       30
       40
       50
       60
      
134 A batsman played 17 innings during a season and he was not out. The score of 85 improves his average by 3 runs in the 17th innings. His average score after 16th innings is
       37
       35
       34
       36
      
135 If paper costs 1 paisa per sheet, and a buyer gets a 2% discount on all the paper he buys after the first 1000 sheets, how much will it costs to buy 5000 sheets of paper?
       Rs 49.30
       Rs 50.00
       Rs 39.20
       Rs 49.20
      
       136 The income of a broker remains unchanged though the rate of commission
       is increased from 4% to 5%. The percentage of slump in business is
       8%
       1%
       20%
       80%
      
137 There are 4 quarts in a gallon. A gallon of motor oil sells for Rs.12 and a quart of the same oil sells for Rs.5. The owner of a rental agency has 6 machines and each machine needs 5 quarts of oil. What is the minimum amount of money she must spend to purchase enough oil ?
       Rs.84
       Rs.94
       Rs.96
       Rs.102
      
138 A truck departed from Newton at 11:53a.m. and arrived in Far City, 240 miles away, at 4:41 p.m. on the same day. What was the approximate average speed of the truck on this trip?
       16/1,200 MPH
       40/288 MPH
       1,494/240 MPH
       50 MPH
      
139 A girl rode her bicycle from home to school, a distance of 15 miles, at an average speed of 15 miles per hour. She returned home from school by walking at an average speed of 5 miles per hour. What was her average speed for the round trip if she took the same route in both directions?
       7.5 miles per hour
       10 miles per hour
       12.5 miles per hour
       13 miles per hour
      
140 A is thrice as good a workman as B. If the time taken by B to do piece of works exceeds that taken by A by 8 days. In how many days A does the work.
       8
       4
       12
       10
      
141 The population of a town was 54,000 in the last census. It has increased 2/3 since then. Its present population is
       18,000
       36,000
       72,000
       90,000
      
142 One hundred job applicants show up in response to a classified ad. If 60 percent of them are female and if 3/4 of the female applicants are willing to relocate if the job demands it, how many are not willing to relocate?
       55
       45
       15
       It cannot be determined from the information given
      
143 Mr. Smith drove at an average speed of 50mph for the first two hours of his trip. For the next three hours, he averaged 20 mph. What was Mr. Smith\'s average speed for the five-hour trip ?
       20 mph
       32 mph
       35 mph
       38 mph
      
144 A postal truck leaves its station and heads for Chicago, averaging 40mph. An error in the mailing schedule is spotted and 24 minutes after the truck leaves, a car is sent to overtake the truck. If the car averages 50mph, how long will it take to catch the postal truck?
       1.6 hours
       3 hours
       2 hours
       1.5 hours
      
145 The length breadth and height of a cuboid are in the ratio 1 : 2 : 3. The length, breadth and height of the cuboid are increased by 100%, 200% and 200% respectively. Then the increase in the volume of the cuboid is
       5 times
       6 times
       12 times
       17 times
      
       146 An Automobile covers the distance between two cities at a speed of 60km.
       per hour and on the return journey it covers at a speed of 40 km. per hour. Find the average speed.
       60
       50
       48
       55
      
147 A man buys 200 shares (par value of Rs.10) of a company, which pays 12% per annum as dividend, at such a price he gets 15% on his money. Find the market value(app.) of a share.
       Rs. 9
       Rs. 12
       Rs. 8
       Rs. 7.50
      
148 An old picture has dimensions 33 inches by 24 inches. What one length must be cut from each dimension so that the ratio of the shorter side to the longer side is 2:3?
       2 inches
       6 inches
       9 inches
       10 1/2 inches
      
149 Hiralal earned a profit of Rs. 300 by selling 100 kg of mixture of A and B types of rice at a total price of Rs. 1100. What was the proportion of A and B types of rice in the mixture if the cost prices of A and B types of rice are Rs. 10 and Rs. 5 per kg respectively ?
       3 : 2
       2 : 5
       2 : 773
       5 : 2
      
150 A fraction has a value of 2/5. If the numerator is decreased by 2 and the denominator increased by 1, then the resulting fraction is 1/4. What is the value of the numerator of the original fraction ?
       5
       6
       7
       8