Aptitude and Reasoning Questions

Q:

An 80 litre mixture of water and acid contains 20% acid. How much acid should be added to make the acid 60% in the new mixture?

 

 

A) 60 B) 80
C) 70 D) 90
 
Answer & Explanation Answer: B) 80

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

What is the average of first 30 multiples of 9?

A) 142 B) 138.5
C) 139.5 D) 143.5
 
Answer & Explanation Answer: C) 139.5

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Filed Under: Problems on Numbers
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Q:

What is the value of ( 1/2 - cot45) ?

A) (2√2-√3)/2 B) 3/2
C) (3√3-1)/3 D) -1/2
 
Answer & Explanation Answer: D) -1/2

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Filed Under: Simplification
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Q:

A) 21, 24, 96, 66, 02 B) 40, 12, 95, 85, 43
C) 03, 33, 89, 59, 11 D) 01, 33, 65, 76, 34
 
Answer & Explanation Answer: C) 03, 33, 89, 59, 11

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Filed Under: Analytical Reasoning
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Q:

If Cot θ = 21/20, then what is the value of Cosec θ?

A) 21/29 B) 29/21
C) 20/29 D) 29/20
 
Answer & Explanation Answer: D) 29/20

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Q:

What is the value of (4/3) cot2 (p/6) + 3 cos2 (150)  4 cosec2 45 + 8 sin (p/2)?

A) 25/4 B) 1
C) – 7/2 D) 13/2
 
Answer & Explanation Answer: A) 25/4

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Filed Under: Simplification
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Q:

What is the length of the side of an equilateral triangle, if its area is 36√3 sq cm?

A) 6 cm B) 24 cm
C) 12 cm D) 18 cm
 
Answer & Explanation Answer: C) 12 cm

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Filed Under: Area
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Q:

Sumit and Amit undertook a work for Rs 7200. Sumit alone can do the work in 5 days and Amit alone can do the work in 4 days. If they work together,then what will be the difference (in Rs.) in the amount they receive?

A) 800 B) 1600
C) 1200 D) 1400
 
Answer & Explanation Answer: A) 800

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Filed Under: Simplification
Exam Prep: Bank Exams

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