Aptitude and Reasoning Questions

Q:

In a group of buffaloes and ducks, the number of legs are 24 more than twice the number of heads. What is the number of buffaloes in the group ?

A) 6 B) 10
C) 8 D) 12
 
Answer & Explanation Answer: D) 12

Explanation:

Let the number of buffaoes be x and number of ducks be y.

Then 4x + 2y = 2(x + y) + 24  

=> 2x = 24

=> x = 12.

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Filed Under: Simplification

18 14940
Q:

A family consists of six members P, Q, R, S, T and U. There are two married couples. Q is a doctor and the father of T. U is grandfather of R and is a contractor. S is grandmother of T and is a housewife. There is one doctor, one contractor, one nurse, one housewife and two students in the family. Which of the following is definitely a group of male members ? 

A) QU B) QUT
C) QUP D) UT
 
Answer & Explanation Answer: A) QU

Explanation:

Q, the Doctor, is the father of T. S, the Housewife, is the grandmother of T and hence the mother of Q. Since there are only two married couples one being that of Q, the grandfather of R. i.e, U must be married to S. Thus, R and T will be both children of Q and these must be the students So, P, who remains, shall be the wife of Q and she alone can be the nurse. Thus, U must be the contractor 

Clearly, for definite the males are Q, the father and U, the grandfather 

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Filed Under: Blood Relations

61 14927
Q:

Two cubes have their volumes in the ratio 1 : 27. Find the ratio of their surface areas.

A) 2:9 B) 3:9
C) 1:9 D) 4:9
 
Answer & Explanation Answer: C) 1:9

Explanation:

Let their edges be a and b. Then,

 

a3/b3 = 1/27 (or) (a/b)3 = (1/3)3 (or) (a/b) = (1/3).

 

\Ratio of their surface area = 6a2/6b2 = a2/b2 = (a/b)2 = 1/9, i.e. 1:9.

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31 14925
Q:

The following table represents the rainfall (in mm) of five states from June to September in a year.

 

 

Consider the information and answer questions based on it.

 

Which month received the lowest rainfall in the year?

A) June B) July
C) August D) September
 
Answer & Explanation Answer: C) August

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 14917
Q:

Study the following table and answer the questions based on it.

Following table gives the expenditures of a company (in lakh rupees) per annum over the given years.

 

 

Expenditure on Fuel and Transport forms what percentage of expenditure on Salary for the year 2001?

 

A) 34.54% B) 39.22%
C) 33.57% D) 37.58%
 
Answer & Explanation Answer: A) 34.54%

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 14898
Q:

Refer the below data and answer the question.

What is the average bonus (in rupees)?

A) 5419995 B) 160000
C) 361333 D) 126000
 
Answer & Explanation Answer: C) 361333

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

1 14897
Q:

Compute the sum of 4 digit numbers which can be formed with the four digits 1,3,5,7, if each digit is used only once in each arrangement.

A) 105555 B) 106665
C) 106656 D) 108333
 
Answer & Explanation Answer: C) 106656

Explanation:

The number of arrangements of 4 different digits taken 4 at a time is given by 4P4 = 4! = 24.All the four digits will occur equal number of times at each of the position,namely ones,tens,hundreds,thousands.

 

 

 

Thus,each digit will occur 24/4 = 6 times in each of the position.The sum of digits in one's position will be 6 x (1+3+5+7) = 96.Similar is the case in ten's,hundred's and thousand's places.

 

 

 

Therefore,the sum will be 96 + 96 x 10 + 96 x 100 + 96 x 100 = 106656

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9 14879
Q:

Refer the below data table and answer the following question.

What was the increase in the height of the child from the 7th Birthday to the 13th Birthday?

A) 55 cms B) 50 cms
C) 45 cms D) 40 cms
 
Answer & Explanation Answer: C) 45 cms

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 14878