Quantitative Aptitude - Arithmetic Ability Questions

Q:

Smaller diagonal of a rhombus is equal to length of its sides. If length of each side is 6 cm, then what is the area (in sq.cm) of an equilateral triangle whose side is equal to the bigger diagonal of the rhombus?

A) 18√3 B) 27√3
C) 32√3 D) 36√3
 
Answer & Explanation Answer: B) 27√3

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Filed Under: Volume and Surface Area
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Q:

A man buys 10 oranges for Rs. 3 and sells 8 for Rs. 3. Calculate his gain percent.

A) 20% B) 25%
C) 27% D) 30%
 
Answer & Explanation Answer: B) 25%

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Filed Under: Profit and Loss
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Q:

For what value of 'y', x2 + 112x + y2 is a perfect square?

A) 1/24 B) 1/12
C) 1/6 D) 1/3
 
Answer & Explanation Answer: A) 1/24

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Q:

How many balls of radius 2 cm can be made by melting a bigger ball of diameter 16 cm? (Take π = 22/7)

A) 64 B) 128
C) 32 D) 96
 
Answer & Explanation Answer: A) 64

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Q:

If curved surface area of a cylinder is 1320 sq cm and height is 10 cm, find its radius?

A) 21 cm B) 42 cm
C) 63 cm D) 10.5 cm
 
Answer & Explanation Answer: A) 21 cm

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Q:

If x4+1x4=119, then the value of x-1x is

A) 6 B) 12
C) 11 D) 3
 
Answer & Explanation Answer: D) 3

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Q:

On selling 120 bottles, Vijay earns profit equal to the cost price of 10 bottles. What is the profit percentage?

 

A) 8.33   B) 9.09  
C) 7.7   D) 12.5
 
Answer & Explanation Answer: A) 8.33  

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Q:

Shivam is 10% less efficient than Vivek. If Vivek can make a helmet in 9 days, then in how many days Shivam can complete the same work?

 

A) 15 B) 12
C) 10 D) 8
 
Answer & Explanation Answer: C) 10

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Filed Under: Time and Work
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