Aptitude and Reasoning Questions

Q:

If 20 men can build a wall 56 meters long in 6 days , what length of  a similar wall can be  built by 35 men in 3 days?

A) 46 B) 47
C) 48 D) 49
 
Answer & Explanation Answer: D) 49

Explanation:

Let the required length be x meters

 More men, More length built     (Direct proportion) 

Less days, Less length built      (Direct Proportion)

Men20:35Days6 : 3 56 :x 

=> (20 x 6 x X)=(35 x 3 x 56) 

=> x = 49 

Hence, the required length is 49 m.

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Q:

Select the related number from the given alternatives.

55 : 11 :: 125 : ?

A) 22 B) 5
C) 25 D) 101
 
Answer & Explanation Answer: C) 25

Explanation:
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Exam Prep: Bank Exams

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Q:

If x2 = 252 - 152, then find the value of x?

 

A) 40 B) 50
C) 20 D) 25
 
Answer & Explanation Answer: C) 20

Explanation:
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Q:

Find the appropriate value of '?' in (14.998)3 = ?

 

A) 3573 B) 4096
C) 3378 D) 3374
 
Answer & Explanation Answer: D) 3374

Explanation:
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Exam Prep: Bank Exams

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Q:

Use continuity to evaluate the limit.

limx128+x8+x

 

A) 1 B) 2
C) 4 D) 0
 
Answer & Explanation Answer: A) 1

Explanation:

Since, we have that,

The numerator and denominator is (8+x), which is a polynomial is continuous for all the real numbers i.e. for all x belonging to .

Thus, the limit exists and is given by,

limx128+x8+x = 8+128+12= 1.

 

 

 

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Exam Prep: Bank Exams , CAT

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Q:

If A's height is 40% less than that of B, how much percent B's height is more than that of A?

A) 66.66% B) 76.66%
C) 96.66% D) 86.66%
 
Answer & Explanation Answer: A) 66.66%

Explanation:

Excess of B's height over A's = [(40/(100 - 40)] x 100% =  66.66%

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Q:

Which of the following statement(s) is/are TRUE?

 

I. 225 + 441256 > 2.5II. 289 + 529169 > 3

 

A) Only I   B) Only II  
C) Neither I nor II D) Both I and II
 
Answer & Explanation Answer: B) Only II  

Explanation:
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Exam Prep: Bank Exams

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Q:

ΔABC is right angled at B. If cotA = 8/15, then what is the value of cosC ?

 

A) 15/8   B) 8/17  
C) 17/15   D) 15/17
 
Answer & Explanation Answer: D) 15/17

Explanation:
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Exam Prep: Bank Exams

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