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Instruction:
 Total number of questions : 20.
 Time alloted : 30 minutes.
 Each question carry 1 mark, no negative marks.
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1.  Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is: 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: N = H.C.F. of (4665  1305), (6905  4665) and (6905  1305) = H.C.F. of 3360, 2240 and 5600 = 1120. Sum of digits in N = ( 1 + 1 + 2 + 0 ) = 4 Learn more problems on : Problems on H.C.F and L.C.M Discuss about this problem : Discuss in Forum 
2.  The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person? 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: Total weight increased = (8 x 2.5) kg = 20 kg. Weight of new person = (65 + 20) kg = 85 kg. Video Explanation: https://youtu.be/ceg2jvHsiJU Learn more problems on : Average Discuss about this problem : Discuss in Forum 
3.  The difference between a twodigit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ? 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: Since the number is greater than the number obtained on reversing the digits, so the ten's digit is greater than the unit's digit. Let ten's and unit's digits be 2x and x respectively. Then, (10 x 2x + x)  (10x + 2x) = 36 9x = 36 x = 4. Required difference = (2x + x)  (2x  x) = 2x = 8. Learn more problems on : Problems on Numbers Discuss about this problem : Discuss in Forum 
4.  The sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be: 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Let the present ages of son and father be x and (60 x) years respectively. Then, (60  x)  6 = 5(x  6) 54  x = 5x  30 6x = 84 x = 14. Son's age after 6 years = (x+ 6) = 20 years.. Learn more problems on : Problems on Ages Discuss about this problem : Discuss in Forum 
5.  Three candidates contested an election and received 1136, 7636 and 11628 votes respectively. What percentage of the total votes did the winning candidate get? 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: Total number of votes polled = (1136 + 7636 + 11628) = 20400.
Learn more problems on : Percentage Discuss about this problem : Discuss in Forum 
6.  In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit? 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: Let C.P.= Rs. 100. Then, Profit = Rs. 320, S.P. = Rs. 420. New C.P. = 125% of Rs. 100 = Rs. 125 New S.P. = Rs. 420. Profit = Rs. (420  125) = Rs. 295.
Video Explanation: https://youtu.be/bQA8SB8ycbw Learn more problems on : Profit and Loss Discuss about this problem : Discuss in Forum 
7.  If the cost of x metres of wire is d rupees, then what is the cost of y metres of wire at the same rate? 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Cost of x metres = Rs. d.
Learn more problems on : Chain Rule Discuss about this problem : Discuss in Forum 
8.  A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will be: 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: Let the height of the building x metres. Less lengthy shadow, Less in the height (Direct Proportion) 40.25 : 28.75 :: 17.5 : x 40.25 x x = 28.75 x 17.5
x = 12.5 Learn more problems on : Chain Rule Discuss about this problem : Discuss in Forum 
Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.  
9. 


Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: I. (10 x 6) men can complete the work in 1 day.
So, 10 women can finish the work in 8 days. III. (10 men's work for 3 days) + (10 women's work for 4 days) = 1 (10 x 3) men's 1 day's work + (10 x 4) women's 1 day's work = 1 30 men's 1 day's work + 40 women's 1 day's work = 1 Thus, I and III will give us the answer. And, II and III will give us the answer. Correct answer is (A). Learn more problems on : Time and Work Discuss about this problem : Discuss in Forum 
Each of these questions is followed by three statements. You have to study the question and all the three statements given to decide whether any information provided in the statement(s) is redundant and can be dispensed with while answering the given question.  
10. 


Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Clearly, I only gives the answer. Similarly, II only gives the answer. And, III only gives the answer. Correct answer is (D). Learn more problems on : Time and Work Discuss about this problem : Discuss in Forum 
11.  A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is: 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Let original length = x and original breadth = y.
Learn more problems on : Area Discuss about this problem : Discuss in Forum 
Each of the questions given below consists of a statement and / or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is / are sufficient to answer the given question. Read the both statements and
 
12. 


Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: I gives, h = 28 m and r = 14. Capacity = r^{2}h, which can be obtained. Thus, I alone gives the answer. II gives, r^{2} = 616 m^{2} and h = 28 m. Capacity = (r^{2} x h) = (616 x 28) m^{3}. Thus, II alone gives the answer. Correct answer is (C). Learn more problems on : Volume and Surface Area Discuss about this problem : Discuss in Forum 
13.  In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by: 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation:
A beats B by 20 metres. Learn more problems on : Races and Games Discuss about this problem : Discuss in Forum 
14.  A 6% stock yields 8%. The market value of the stock is: 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: For an income of Rs. 8, investment = Rs. 100.
Market value of Rs. 100 stock = Rs. 75. Learn more problems on : Stocks and Shares Discuss about this problem : Discuss in Forum 
15.  A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw? 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: We may have(1 black and 2 nonblack) or (2 black and 1 nonblack) or (3 black).
Learn more problems on : Permutation and Combination Discuss about this problem : Discuss in Forum 
16.  If Rs. 10 be allowed as true discount on a bill of Rs. 110 due at the end of a certain time, then the discount allowed on the same sum due at the end of double the time is: 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation:
S.I. on Rs. (110  10) for a certain time = Rs. 10.
S.I. on Rs. 100 for double the time = Rs. 20. T.D. on Rs. 120 = Rs. (120  100) = Rs. 20.
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Find the odd man out.  
17.  10, 14, 16, 18, 21, 24, 26 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation:
Each of the numbers except 21 is an even number.
Learn more problems on : Odd Man Out and Series Discuss about this problem : Discuss in Forum 
18.  835, 734, 642, 751, 853, 981, 532 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation:
In each number except 751, the difference of third and first digit is the middle one.
Learn more problems on : Odd Man Out and Series Discuss about this problem : Discuss in Forum 
Find out the wrong number in the given sequence of numbers.  
19.  1, 2, 6, 15, 31, 56, 91 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: 1, 1 + 1^{2} = 2, 2 + 2^{2} = 6, 6 + 3^{2} = 15, 15 + 4^{2} = 31, 31 + 5^{2} = 56, 56 + 6^{2} = 92 Last number of given series must be 92 not 91. Learn more problems on : Odd Man Out and Series Discuss about this problem : Discuss in Forum 
Insert the missing number.  
20.  7, 26, 63, 124, 215, 342, (....) 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: Numbers are (2^{3}  1), (3^{3}  1), (4^{3}  1), (5^{3}  1), (6^{3}  1), (7^{3}  1) etc. So, the next number is (8^{3}  1) = (512  1) = 511. Learn more problems on : Odd Man Out and Series Discuss about this problem : Discuss in Forum 