Aptitude and Reasoning Questions

Q:

4 years ago, the respective ratio between 1/2 of A’s age at that time and four times of B’s age at that time was 5 : 12. Eight years hence 1/2 of A’s age at that time will be less than B’s age at that time by 2 years. What is B’s present age ?

A) 10 years B) 12 years
C) 14 years D) 8 years
 
Answer & Explanation Answer: A) 10 years

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Q:

Murad can do a piece of work in 33 hours. If he is joined by Joel who is 100% more efficient, in what time will they together finish the work?

A) 4 hours B) 6 hours
C) 2 hours D) 11 hours
 
Answer & Explanation Answer: D) 11 hours

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

1/(tanA + cotA) is equal to

A) (cosecA + sinA)(secA - cosA) B) √[(cosecA - sinA)(secA - cosA)]
C) √[(cosecA + sinA)(secA - cosA)] D) (cosecA - sinA)(secA - cosA)
 
Answer & Explanation Answer: D) (cosecA - sinA)(secA - cosA)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Find the HCF of 865 and 2595.

A) 25 B) 2595
C) 865 D) 5
 
Answer & Explanation Answer: C) 865

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

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Q:

Giving two successive discounts of 40% is equal to giving one discount of ________%.

A) 80 B) 96
C) 64 D) 72
 
Answer & Explanation Answer: C) 64

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

In a container, there is 960 ltr of pure milk from which 48 ltr of milk is replaced with 48 ltr of water, again 48 ltr milk is replaced by same amount of water, as this process is done once more. Now, what is the amount of pure milk?

A) 901.54 ltr B) 821.54 ltr
C) 719.64 ltr D) 823.08 ltr
 
Answer & Explanation Answer: D) 823.08 ltr

Explanation:

Amount of pure milk= a(1 –b/a)n(n = 3, a = pure milk and b = amount replaced)= 960 (1 –48/960)^3= 960(1-1/20)^3= 960 * 19/20 * 19/20*19/20= 823.08 lt.

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

Group the given figures into three classes using each figure only once.

A) 1,3,9 ; 2,5,6 ; 4,7,8 B) 1,3,9 ; 2,7,8 ; 4,5,6
C) 1,2,4 ; 3,5,7 ; 6,8,9 D) 1,3,6 ; 2,4,8 ; 5,7,9
 
Answer & Explanation Answer: A) 1,3,9 ; 2,5,6 ; 4,7,8

Explanation:

1,3,9 have one element placed inside a different element.

2,5,6 contain two mutually perpendicular lines dividing the figure into four parts.

4,7,8 have two similar elements (unequal in size) attached to each other.

 

 

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Filed Under: Grouping of Images

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Q:

A man is engaged for planting trees for 10 hours. He plants 10 trees in an hour. He takes rest for 30 minutes after every hour. How many trees does he plant in 10 hours?

A) 100 B) 50
C) 70 D) 45
 
Answer & Explanation Answer: C) 70

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

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