Aptitude and Reasoning Questions

Q:

The product of two 2-digit numbers is 2160 and their H.C.F. is 12. The numbers are

A) (12, 60) B) (72, 30)
C) (36, 60) D) (60, 72)
 
Answer & Explanation Answer: C) (36, 60)

Explanation:
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Filed Under: HCF and LCM
Exam Prep: Bank Exams

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Q:

In a computer game, a builder can build a wall in ten hours while a destroyer can demolish such a wall completely in fourteen hours. Both, the builder and the destroyer were initially set to work together on level ground. But after 7 hours the destroyer was taken out. What was the total time (in hrs) taken to build the wall ?

A) 17 B) 15
C) 24 D) 35
 
Answer & Explanation Answer: B) 15

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Q:

Find the least common multiple of 15 and 12?

A) 3 B) 12
C) 30 D) 60
 
Answer & Explanation Answer: D) 60

Explanation:

The least common multiple of 12 and 15 is

12 = 2 x 2 x 3

15 = 3 x 5

 

LCM of 12 and 15 is  2 x 2 x 3 x 5 = 60.

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Filed Under: HCF and LCM
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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11 2996
Q:

What is the value of cosec 11π/6?

A) -2/√3 B) √2
C) -2 D) -√2
 
Answer & Explanation Answer: C) -2

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Filed Under: Simplification
Exam Prep: Bank Exams

1 2994
Q:

The area of a circular cricket ground is 24.64 hectares. Find the cost of making rope boundary at the rate of Rs. 5.40 per metre.

A) Rs. 9,600 B) Rs. 9,504
C) Rs. 9,802 D) Rs. 9,876
 
Answer & Explanation Answer: B) Rs. 9,504

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Filed Under: Area
Exam Prep: Bank Exams

1 2993
Q:

Introducing a boy, a girl says, "He is the son of the sister of my mother's brother." How is the boy related to the girl?

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

Explanation:
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Filed Under: Blood Relations
Exam Prep: AIEEE , Bank Exams , CAT

5 2992
Q:

A sum of Rs. 2600 is invested at two different rates of interest. The difference between the simple interests got after 4 years is Rs 402.80 at these two rates, what is the difference between the rates of interest?

A) 1.58 B) 2.63
C) 3.87 D) 4.02
 
Answer & Explanation Answer: C) 3.87

Explanation:

Let the two different rates of interests be r1 and r2 respectively.

From the given data,

2600 x 4 x r1 - r2100  = 402.80r1 - r2 = 402.80104  = 3.87

 

Hence, the difference in the interest rates = 3.87

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Filed Under: Simple Interest
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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7 2990
Q:

Four of the following five are alike in a certain way and so form a group. which one does not belong to that group?

1. Robust : Weak      2. Chaos : Peace    3. Cruel : kind    4. Sink : Float    5. Abduct : Kidnap

Answer

Answer : (5)


The first four pairs indicate opposite of one another, whereas (5) is a pair of words having the same meaning.

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Subject: Classification

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