Aptitude and Reasoning Questions

Q:

A works twice as fast as B.If  B can complete a work in 18 days independently,the number of days  in which A and B can together finish the work is:

A) 4 days B) 6 days
C) 8 days D) 10 days
 
Answer & Explanation Answer: B) 6 days

Explanation:

Ratio of rates of working of A and B =2:1. So, ratio of times taken =1:2

Therefore, A's 1 day's work=1/9 

B's 1 day's work=1/18 

(A+B)'s 1 day's work= 1/9 + 1/18 = 1/6

so, A and B together can finish the work in 6 days

 

 

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Filed Under: Time and Work

101 34336
Q:

In the following question, select the related word pair from the given alternatives.

 

Square : Four : : ? : ?

 

A) Triangle : Five B) Rectangle : Four
C) Octagon : Seven D) Circle : Five
 
Answer & Explanation Answer: B) Rectangle : Four

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

0 34327
Q:

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

16 ÷ 6 + 35 x 9 - 15 = 31

 

A) + and x B) + and ÷
C) ÷ and - D) - and +
 
Answer & Explanation Answer: C) ÷ and -

Explanation:
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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 34327
Q:

Select the related word/letters/number from the given alternatives.

 

Railway Station : Station Master : : School : ?

A) Chef B) Doctor
C) Lieutenant D) Principal
 
Answer & Explanation Answer: D) Principal

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

0 34320
Q:

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

 

18 + 12 ÷ 9 - 30 x 16 = 10

A) + and x B) + and ÷
C) - and + D) ÷ and x
 
Answer & Explanation Answer: A) + and x

Explanation:
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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

5 34291
Q:

In the following question, select the related letter/letters from the given alternatives.

 

MZU : CPK : : QSP : ?

 

 

A) GIH B) GIF
C) HJL D) HJG
 
Answer & Explanation Answer: B) GIF

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

0 34288
Q:

In the following question, select the related number pair from the given alternatives.

31 : 42 : : ? : ?

A) 53 : 64 B) 47 : 59
C) 61 : 73 D) 44 : 34
 
Answer & Explanation Answer: A) 53 : 64

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

0 34286
Q:

Two brother X and Y appeared for an exam. The probability of selection of X is 1/7 and that of B is 2/9. Find the probability that both of them are selected.

A) 1/63 B) 1/14
C) 2/63 D) 1/9
 
Answer & Explanation Answer: C) 2/63

Explanation:

Let A be the event that X is selected and B is the event that Y is selected.

P(A) = 1/7,  P(B) = 2/9.

Let C be the event that both are selected.

P(C) = P(A) × P(B) as A and B are independent events: 

       = (1/7) × (2/9)  = 2/63

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Filed Under: Probability

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