Quantitative Aptitude - Arithmetic Ability Questions

Q:

a% of b + b% of a = ______

A) 2a% of b B) 2a% of 2b
C) 2a% of 2a D) 2b% of 2b
 
Answer & Explanation Answer: A) 2a% of b

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Q:

What will be the net discount percentage of three successive discounts of 20%, 10% and 30%?

A) 45.2 B) 49.6
C) 54.6 D) 50.4
 
Answer & Explanation Answer: B) 49.6

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Q:

If 1p+1q = 1p+q, then the value of p3-q3

A) p-q B) pq
C) 1 D) 0
 
Answer & Explanation Answer: D) 0

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Q:

In the first 45 overs of a 50 over innings, the run rate was 5.8 runs per over. What is the required run rate in the remaining overs to reach the target of 295 runs?

A) 6.9 B) 6.8
C) 6.7 D) 6.6
 
Answer & Explanation Answer: B) 6.8

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Q:

A train is moving at the speed of 72km/hr. How many seconds will it take to cover a distance of 1400 m ?

A) 70 B) 80
C) 72 D) 84
 
Answer & Explanation Answer: A) 70

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Q:

A number is decreased by 10% and the resulting number is again decreased by 20%. What is the final percentage of decrease?

A) 25% B) 26%
C) 27% D) 28%
 
Answer & Explanation Answer: D) 28%

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Q:

If cos ­-11π/6 = x, then the value of x is

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

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Q:

In an ornament the ratio of gold and copper is 3:2. The percentage of gold in the ornament is:

A) 60 B) 40
C) 30 D) 20
 
Answer & Explanation Answer: A) 60

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