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Online Aptitude Test - Aptitude Test 5

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Instruction:

  • Total number of questions : 20.
  • Time alloted : 30 minutes.
  • Each question carry 1 mark, no negative marks.
  • DO NOT refresh the page.
  • All the best :-).


1.

The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is:

A.
74
B.
94
C.
184
D.
364

Your Answer: Option (Not Answered)

Correct Answer: Option D

Explanation:

L.C.M. of 6, 9, 15 and 18 is 90.

Let required number be 90k + 4, which is multiple of 7.

Least value of k for which (90k + 4) is divisible by 7 is k = 4.

Required number = (90 x 4) + 4   = 364.

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2.

The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively, is:

A.
123
B.
127
C.
235
D.
305

Your Answer: Option (Not Answered)

Correct Answer: Option B

Explanation:

Required number = H.C.F. of (1657 - 6) and (2037 - 5)

  = H.C.F. of 1651 and 2032 = 127.

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3.

100 oranges are bought at the rate of Rs. 350 and sold at the rate of Rs. 48 per dozen. The percentage of profit or loss is:
A.
14 2 % gain
7
B.
15% gain
C.
14 2 % loss
7
D.
15 % loss

Your Answer: Option (Not Answered)

Correct Answer: Option A

Explanation:

C.P. of 1 orange = Rs. 350 = Rs. 3.50
100

S.P. of 1 orange = Rs. 48 = Rs. 4
12

Gain% = 0.50 x 100 % = 100 % = 14 2 %
3.50 7 7

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4.

Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?

A.
2 : 3 : 4
B.
6 : 7 : 8
C.
6 : 8 : 9
D.
None of these

Your Answer: Option (Not Answered)

Correct Answer: Option A

Explanation:

Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively.

Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).

140 x 5x , 150 x 7x and 175 x 8x
100 100 100

7x, 21x and 14x.
2

The required ratio = 7x : 21x : 14x
2

14x : 21x : 28x

2 : 3 : 4.

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Direction (for Q.No. 5):

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.

5.

Three friends, P, Q and R started a partnership business investing money in the ratio of 5 : 4 : 2 respectively for a period of 3 years. What is the amount received by P as his share profit?

I. 

Total amount invested in the business in Rs. 22,000.

II. 

Profit earned at the end of 3 years is of the total investment.

 III. 

The average amount of profit earned per year is Rs. 2750.

A.
I or II or III
B.
Either III only, or I and II together
C.
Any two of the three
D.
All I, II and III are required.
E.
None of these

Your Answer: Option (Not Answered)

Correct Answer: Option B

Explanation:

I and II give, profit after 3 years = Rs. 3 x 22000 = Rs. 8250.
8

From III also, profit after 3 years = Rs. (2750 x 3) = Rs. 8250.

P's share = Rs. 8250 x 5 = Rs. 3750.
11

Thus, (either III is redundant [or] I and II are redundant).

Correct answer is (B).

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6.

If a quarter kg of potato costs 60 paise, how many paise will 200 gm cost?

A.
48 paise
B.
54 paise
C.
56 paise
D.
72 paise

Your Answer: Option (Not Answered)

Correct Answer: Option A

Explanation:

Let the required weight be x kg.

Less weight, Less cost (Direct Proportion)

250 : 200 :: 60 : x       250 x x = (200 x 60)

x= (200 x 60)
250

x = 48.

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7.

P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?

A.
5 5
11
B.
5 6
11
C.
6 5
11
D.
6 6
11

Your Answer: Option (Not Answered)

Correct Answer: Option A

Explanation:

P can complete the work in (12 x 8) hrs. = 96 hrs.

Q can complete the work in (8 x 10) hrs. = 80 hrs.

P's1 hour's work = 1 and Q's 1 hour's work = 1 .
96 80

(P + Q)'s 1 hour's work = 1 + 1 = 11 .
96 80 480

So, both P and Q will finish the work in 480 hrs.
11

Number of days of 8 hours each = 480 x 1 = 60 days = 5 5 days.
11 8 11 11

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8.

Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:

A.
15
B.
16
C.
18
D.
25

Your Answer: Option (Not Answered)

Correct Answer: Option B

Explanation:

Ratio of times taken by Sakshi and Tanya = 125 : 100 = 5 : 4.

Suppose Tanya takes x days to do the work.

5 : 4 :: 20 : x    x = 4 x 20
5

x = 16 days.

Hence, Tanya takes 16 days to complete the work.

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9.

A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:
A.
45 km/hr
B.
50 km/hr
C.
54 km/hr
D.
55 km/hr

Your Answer: Option (Not Answered)

Correct Answer: Option B

Explanation:

Speed of the train relative to man = 125 m/sec
10

   = 25 m/sec.
2

   = 25 x 18 km/hr
2 5

   = 45 km/hr.

Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr.

x - 5 = 45         x = 50 km/hr.

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10.

Two trains, each 100 m long, moving in opposite directions, cross each other in 8 seconds. If one is moving twice as fast the other, then the speed of the faster train is:

A.
30 km/hr
B.
45 km/hr
C.
60 km/hr
D.
75 km/hr

Your Answer: Option (Not Answered)

Correct Answer: Option C

Explanation:

Let the speed of the slower train be x m/sec.

Then, speed of the faster train = 2x m/sec.

Relative speed = (x + 2x) m/sec = 3x m/sec.

(100 + 100) = 3x
8

24x = 200

x = 25 .
3

So, speed of the faster train = 50 m/sec
3

   = 50 x 18 km/hr
3 5

   = 60 km/hr.

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11.

A train travelling at a speed of 75 mph enters a tunnel 31/2 miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?
A.
2.5 min
B.
3 min
C.
3.2 min
D.
3.5 min

Your Answer: Option (Not Answered)

Correct Answer: Option B

Explanation:

Total distance covered
= ( 7 + 1 ( miles
2 4
= 15 miles.
4

Therefore Time taken
= ( 15 ( hrs
4 x 75
= 1 hrs
20
= ( 1 x 60 ( min.
20
= 3 min.

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12.

A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is:

A.
2 : 1
B.
3 : 1
C.
3 : 2
D.
4 : 3

Your Answer: Option (Not Answered)

Correct Answer: Option B

Explanation:

Let man's rate upstream be x kmph.

Then, his rate downstream = 2x kmph.

(Speed in still water) : (Speed of stream) = 2x + x : 2x - x
2 2

   = 3x : x
2 2

   = 3 : 1.

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13.

A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?

A.
3%
B.
4%
C.
5%
D.
6%
E.
None of these

Your Answer: Option (Not Answered)

Correct Answer: Option D

Explanation:

S.I. = Rs. (15500 - 12500) = Rs. 3000.

Rate = 100 x 3000 % = 6%
12500 x 4

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14.

At what rate of compound interest per annum will a sum of Rs. 1200 become Rs. 1348.32 in 2 years?

A.
6%
B.
6.5%
C.
7%
D.
7.5%

Your Answer: Option (Not Answered)

Correct Answer: Option A

Explanation:

Let the rate be R% p.a.

Then, 1200 x 1 + R 2 = 1348.32
100

1 + R 2 = 134832 = 11236
100 120000 10000

1 + R 2 = 106 2
100 100

1 + R = 106
100 100

R = 6%

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Direction (for Q.No. 15):

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.

15.

What is the cost painting the two adjacent walls of a hall at Rs. 5 per m2 which has no windows or doors?

I. 

The area of the hall is 24 sq. m.

II. 

The breadth, length and height of the hall are in the ratio of 4 : 6 : 5 respectively.

 III. 

Area of one wall is 30 sq. m.

A.
I only
B.
II only
C.
III only
D.
Either I or III
E.
All I, II and III are required.

Your Answer: Option (Not Answered)

Correct Answer: Option C

Explanation:

From II, let l = 4x, b = 6x and h = 5x.

Then, area of the hall = (24x2) m2.

From I. Area of the hall = 24 m2.

From II and I, we get 24x2 = 24         x = 1.

l = 4 m, b = 6 and h = 5 m.

Thus, area of two adjacent walls = [(l x h) + (b x h)] m2 can be found out and so the cost of painting two adjacent walls may be found out.

Thus, III is redundant.

Correct answer is (C).

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Direction (for Q.No. 16):

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

  • Give answer (A) if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.
  • Give answer (B) if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
  • Give answer (C) if the data either in Statement I or in Statement II alone are sufficient to answer the question.
  • Give answer (D) if the data even in both Statements I and II together are not sufficient to answer the question.
  • Give answer(E) if the data in both Statements I and II together are necessary to answer the question.
16.

What is the height of a circular cone?

I. 

The area of that cone is equal to the area of a rectangle whose length is 33 cm.

 II. 

The area of the base of that cone is 154 sq. cm.

A.
I alone sufficient while II alone not sufficient to answer
B.
II alone sufficient while I alone not sufficient to answer
C.
Either I or II alone sufficient to answer
D.
Both I and II are not sufficient to answer
E.
Both I and II are necessary to answer

Your Answer: Option (Not Answered)

Correct Answer: Option D

Explanation:

II gives the value of r.

But, in I, the breadth of rectangle is not given.

So, we cannot find the surface area of the cone.

Hence, the height of the cone cannot be determined.

Correct answer is (D).

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17.

At what time between 5.30 and 6 will the hands of a clock be at right angles?

A.
43 5 min. past 5
11
B.
43 7 min. past 5
11
C.
40 min. past 5
D.
45 min. past 5

Your Answer: Option (Not Answered)

Correct Answer: Option B

Explanation:

At 5 o'clock, the hands are 25 min. spaces apart.

To be at right angles and that too between 5.30 and 6, the minute hand has to gain (25 + 15) = 40 min. spaces.

55 min. spaces are gained in 60 min.

40 min. spaces are gained in 60 x 40 min = 43 7 min.
55 11

Required time = 43 7 min. past 5.
11

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18.

Which is better investment: 11% stock at 143  or  9% stock at 117?

A.
11% stock at 143
B.
9 3 % stock at 117
4
C.
Both are equally good
D.
Cannot be compared, as the total amount of investment is not given.

Your Answer: Option (Not Answered)

Correct Answer: Option B

Explanation:

Let investment in each case be Rs. (143 x 117).

Income in 1st case = Rs. 11 x 143 x 117 = Rs. 1287.
143

Income in 2nd case = Rs. 39 x 143 x 117 = Rs. 1394.25
4 x 117

Clearly, 9 3 % stock at 117 is better.
4

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19.

The banker's gain on a bill due 1 year hence at 12% per annum is Rs. 6. The true discount is:

A.
Rs. 72
B.
Rs. 36
C.
Rs. 54
D.
Rs. 50

Your Answer: Option (Not Answered)

Correct Answer: Option D

Explanation:

T.D. = B.G. x 100 = Rs. 6 x 100 = Rs. 50.
R x T 12 x 1

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Direction (for Q.No. 20):
Find out the wrong number in the given sequence of numbers.
20.

25, 36, 49, 81, 121, 169, 225

A.
36
B.
49
C.
121
D.
169

Your Answer: Option (Not Answered)

Correct Answer: Option A

Explanation:

The numbers are squares of odd natural numbers, starting from 5 up to 15.

So, 36 is wrong.

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