Aptitude and Reasoning Questions

Q:

Multiplicative inverse of 7?

A) 1 B) -1/7
C) 0 D) 1/7
 
Answer & Explanation Answer: D) 1/7

Explanation:

Multiplicative inverse is nothing but a reciprocal of a number. 

It is defined as one of a pair of numbers that when multiplied with another number equals the number 1.

Multiplicative inverse or reciprocal of 7 is 

7 x n = 1

=> n = 1/7.

 

Hence, Multiplicative inverse or reciprocal of 7 is  1/7.

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Filed Under: Arithmetical Reasoning
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Q:

A : There is increase in water level of all the water tanks supplying drinking water to the city during the last fornight

B : Most of the trains were cancelled last week due to waterlogging on the tracks.

A) If statement (A) is the cause and statement (B) is its effect B) If statement (B) is the cause and statement (A) is its effect
C) If both the statements (A) and (B) are independent causes D) If both the statements (A) and (B) are effects of some common cause
 
Answer & Explanation Answer: C) If both the statements (A) and (B) are independent causes

Explanation:

Increase in water level of all water tanks and the problem of water -logging on the tracks are the result of increase of water availability or surplus of water (due to rain). Hence, both the events are effects of the same cause.

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3 2693
Q:

A & B are married couple. X and Y are brothers. X is the brother of A. How is Y related to B?

A) Brother-in-law B) Brother
C) Son-in-law D) Cousin
 
Answer & Explanation Answer: A) Brother-in-law

Explanation:
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Filed Under: Blood Relations
Exam Prep: Bank Exams

4 2692
Q:

If 4(x+y) = 256 and (256)(x-y) = 4, then what is the value of x and y?

A) 17/8, 15/8 B) 17/4, 15/4
C) 9/17, 15/17 D) 8/17, 8/15
 
Answer & Explanation Answer: A) 17/8, 15/8

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

To travel 432 km, an Express train takes 1 hour more than Duronto. If however, the speed of the Express train is increased by 50%, it takes 2 hours less than Duronto. What is the speed (in km/hr) of Duronto train?

A) 60 B) 54
C) 48 D) 72
 
Answer & Explanation Answer: B) 54

Explanation:
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Filed Under: Problems on Trains
Exam Prep: Bank Exams

4 2691
Q:

In a row of boys, Rahul is 19th from top and Ajay is 21st from bottom. They interchange their position. Ajay now becomes 28th from bottom. Howmany total boys are there in the row?

A) 47 B) 46
C) 45 D) 48
 
Answer & Explanation Answer: B) 46

Explanation:
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Q:

Callous is the opposite of

A) emotionally hardened B) insensitive
C) sympathetic D) Unkind
 
Answer & Explanation Answer: C) sympathetic

Explanation:

A callous person is insensitive or emotionally hardened.

 

Hence, Callous is the opposite of Sympathetic, kind hearted, sensitive, nice,...

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Filed Under: Alphabet Test
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3 2691
Q:

Determine the value of “s” for which the equation 5x + 35 = 60x + s has infinite number of solutions.

A) 420 B) 440
C) 460 D) 480
 
Answer & Explanation Answer: A) 420

Explanation:
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Filed Under: Simplification
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