Quantitative Aptitude - Arithmetic Ability Questions

Q:

Of the 5 numbers whose average is 76, the first is 3/7 times the sum of other 4. The first number is

A) 171 B) 114
C) 76 D) 228
 
Answer & Explanation Answer: B) 114

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Q:

What is the value of ( 1/3 ­- cot60°) ?

A) (2­-√3)/2√3 B) (√2-­1)/√2
C) (1­-√3)/3 D) (√3­-4)/2√3
 
Answer & Explanation Answer: C) (1­-√3)/3

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Q:

If a wholesaler, sells a box of chocolates at Rs 960 he gains 20%. Now if he decides to sell it at Rs 1120, what is his profit percentage?

A) 30 B) 40
C) 50 D) 60
 
Answer & Explanation Answer: B) 40

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Filed Under: Profit and Loss
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Q:

If 10% loss is made on selling price, then the rate of loss on the cost price will be

A) 11 1/9% B) 9 1/11%
C) 10% D) 11%
 
Answer & Explanation Answer: A) 11 1/9%

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Q:

The average weight of Shivshankar, Gopesh and Reena is 97 kg. If the average weight of Shivshankar and Gopesh is 93 kg and that of Gopesh and Reena is 82 kg, then the weight of Gopesh is

A) 72 B) 56
C) 59 D) 63
 
Answer & Explanation Answer: C) 59

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Filed Under: Average
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Q:

If sinθ+cosecθ=2, the value of sinnθ+cosecnθ is

A) 2 B) 0
C) 1 D) 1/n
 
Answer & Explanation Answer: A) 2

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Q:

What is the value of (1/√2) Cot 45° + (1/√3) Cosec 60°?

A) (√6 + 1)/√3 B) √3
C) (1 + 3√2)/√3 D) (3 + 2√2)/3√2
 
Answer & Explanation Answer: D) (3 + 2√2)/3√2

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Q:

A train is moving at the speed of 72 km/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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Filed Under: Problems on Trains
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