Quantitative Aptitude - Arithmetic Ability Questions

Q:

The price of rice has increased by 60%. In order to restore the original price, the new price must be reduced by

A) 33 1/3% B) 37 1/2%
C) 40% D) 45%
 
Answer & Explanation Answer: B) 37 1/2%

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Q:

If a(a + b + c) = 45, b(a + b + c) = 75 and c(a + b + c) = 105, then what is the value of (a2 + b2 + c2 )?

A) 75 B) 83
C) 217 D) 225
 
Answer & Explanation Answer: B) 83

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Q:

The simplest form of 3774/2958 is

A) 43/19 B) 37/29
C) 31/13 D) 31/23
 
Answer & Explanation Answer: B) 37/29

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Q:

If x1/4 + x-1/4 = 2, then what is the value of x81 + (1/x81)?

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

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Q:

If x2-2x+1=0, then the value of x4+1x4 is

A) 0 B) 1
C) 2 D) 3
 
Answer & Explanation Answer: B) 1

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Q:

Smaller diagonal of a rhombus is equal to length of its sides. If length of each side is 4 cm, then what is the area (in cm2) of an equilateral triangle with side equal to the bigger diagonal of the rhombus?

A) 6 B) 9√3
C) 12 D) 12√3
 
Answer & Explanation Answer: D) 12√3

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Q:

(242699 + 167109) ÷ (9946 –9446) = ?

A) 852 B) 835
C) 800 D) 820
 
Answer & Explanation Answer: D) 820

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Q:

The least number that must be added to 8961 to make it exactly divisible by 84 is

A) 27 B) 57
C) 141 D) 107
 
Answer & Explanation Answer: A) 27

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