Aptitude and Reasoning Questions

Q:

A group consists of 4 couples in which each of the 4 boys have one girl friend.In how many ways they can be arranged in a straight line such that boys and girls occupies alternate positions?

Answer

Answer : 1152


 


Total positions are 8.


In that boys can be arranged in 4 places and girls can be arranged in 4 places and hence this can be done in 2 ways.


i.e => 4! x 4! x 2 = 24 x 24 x 2=1152.

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Subject: Permutations and Combinations Exam Prep: CAT
Job Role: Bank PO

10 2923
Q:

The bankers discount on Rs 1800 at 12 % per annum is equal to the true discount on Rs 1872 for the same time at the same rate .Find the time.

A) 4 months B) 5 months
C) 6 months D) 3 months
 
Answer & Explanation Answer: A) 4 months

Explanation:

S.I on Rs 1800 = T.D on Rs 1872

P.W of Rs 1872 is Rs 1800

Rs 72 is S.I on Rs 1800 at 12%

Time = (100 * 72)/(12 * 1800)

= 1/3 years = 4 months

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Filed Under: Banker's Discount

0 2922
Q:

In a bucket, paint and oil are in the ratio 7 : 5. 24 litres of mixture is drawn off and 24 litres of oil is added. If the ratio of paint and oil becomes 1 : 1, then how many litres of paint was contained in the bucket initially?

 

A) 49   B)  63  
C)  84   D) 98
 
Answer & Explanation Answer: D) 98

Explanation:
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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

0 2921
Q:

A piece of paper is folded and punched as shown below. Indicate how it will appear when it is opened?

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: C) 3

Explanation:
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Filed Under: Paper Folding
Exam Prep: Bank Exams

2 2921
Q:

Pointing towards a lady in a photograph, a girl says, "Vidit's grandmother is the mother-in-law of this lady". How is the lady in the photograph related to Vidit?

A) Mother B) Sister
C) Aunt D) Grandmother
 
Answer & Explanation Answer: A) Mother

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

6 2919
Q:

A student multiplied a number by 5/6 instead of 6/5. What is the percentage error in the calculation?

A) 44 percent B) 30.56 percent
C) 15.28 percent D) 22 percent
 
Answer & Explanation Answer: B) 30.56 percent

Explanation:
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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams

2 2919
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

19 2919
Q:

In a bag containing red, green and pink tokens, the ratio of red to green tokens was 5 : 12 while the ratio of pink to red tokens was 7 : 15. What was the ratio of green to pink tokens?

A) 25 : 28 B) 36 : 7
C) 8 :25 D) 12 : 7
 
Answer & Explanation Answer: B) 36 : 7

Explanation:
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Filed Under: Permutations and Combinations
Exam Prep: Bank Exams

9 2918