Aptitude and Reasoning Questions

Q:

Average age of A and B, 2 years ago was 26. If the age of A, 5 years hence is 40 years, and B is 5 years younger to C, then find the difference between the age of A and C?

A) 6 B) 9
C) 12 D) 15
 
Answer & Explanation Answer: B) 9

Explanation:

Let the present ages of A & B to be ‘a’ & ‘b’ respectively.
Hence, 2 years ago, their ages must have been (a-2) & (b-2) respectively.
Average of their ages at that time = 26
Hence,
[(a-2)+(b-2)]/2 = 26
(a-2)+(b-2) = 52
a+b = 56
Age of A, 5 year hence = 40 years
Hence, (a+5) = 40
a = 35 years
Hence, b = 56 - 35 = 21 years
B = (C-5)
Hence, C = 21+5 = 26 years
Age difference between A & C = 35 - 26 = 9 years.

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

1/2 - 1/8 =

A) 1/2 B) 3/8
C) 2/3 D) 3/2
 
Answer & Explanation Answer: B) 3/8

Explanation:

Now to find the difference in the given fractions, 1/2 - 1/8

First take the LCM of 2 & 8

LCM of 2 & 8 is 8

Then,

1/2 - 1/8

= (4 - 1)/8

= 3/8

 

Hence, 1/2 - 1/8 = 3/8.

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Filed Under: Mathematical Operations
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Q:

Find 150% of X, if X is the least number which when divided by 6, 7, 8, 9 and 12 leaves remainders 2, 3, 4, 5 and 8 respectively.

A) 750 B) 500
C) 1000 D) 1200
 
Answer & Explanation Answer: A) 750

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Among four boys, age of Ashish is thrice the age of Varun. Age of Arvind is 1/2 of the age of Varun. Amit is 8 years elder to Varun, but 8 years younger to Ashish. Who is the second eldest?

A) Amit B) Ashish
C) Arvind D) Varun
 
Answer & Explanation Answer: A) Amit

Explanation:
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Q:

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

100, -20, 4, ? , 0.16, -0.032

A) 0.8 B) 1
C) -1 D) -0.8
 
Answer & Explanation Answer: D) -0.8

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

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Q:

If '+' means '÷', '÷' means '­', '­' means 'X' and 'X' means '+', then 48 + 16 x 4 ­2 ÷ 8 = ?

A) 3 B) 6
C) 112 D) -28
 
Answer & Explanation Answer: A) 3

Explanation:
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Filed Under: Coding and Decoding
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Q:

A racing event was organised in a jungle. The dog ran faster than the elephant but slower than the tiger. The deer was the fastest. The lion ran faster than the tiger. Who was the second to finish the race?

A) Dog B) Deer
C) Elephant D) Lion
 
Answer & Explanation Answer: D) Lion

Explanation:
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Filed Under: Arithmetical Reasoning
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Q:

Nine years later, age of B will be equal to the present age of A. Sum of A's age 3 years later and B's age 4 years ago is 76. If C is half of the present age of B, then what will be C's age (in years) after 10 years?

A) 32 B) 36
C) 27 D) 31
 
Answer & Explanation Answer: C) 27

Explanation:
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Filed Under: Problems on Ages
Exam Prep: AIEEE , Bank Exams , CAT , GATE

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