Quantitative Aptitude - Arithmetic Ability Questions

Q:

When 2x + 2x = 3, then x3 + 1x + 2 value is

A) 2/7 B) 7/8
C) 7/2 D) 8/7
 
Answer & Explanation Answer: B) 7/8

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Q:

If a = 3+23-2, b = 3-23+2 then a2+b2-ab ?

A) 97 B) (2√3) + 2
C) (4√6) + 1 D) 98
 
Answer & Explanation Answer: A) 97

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Q:

Which of the following value of 'x' satisfies the equation 814x+4 = 2432x+8?

A) 3 B) 4
C) 5 D) 6
 
Answer & Explanation Answer: B) 4

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Q:

If 1 dupatta is offered free on purchase of 4 dupattas priced Rs 1300 each what is the effective discount on each dupatta?

A) 66.67 percent B) 20 percent
C) 25 percent D) 12.5 percent
 
Answer & Explanation Answer: B) 20 percent

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Q:

If 3 dozen guavas cost Rs. 90, how many guavas can be bought for Rs. 240?

A) 98 B) 96
C) 102 D) 90
 
Answer & Explanation Answer: B) 96

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Q:

The value of 2.31 x 0.34 = ?

A) 1.7854 B) 0.7854
C) 0.7845 D) 0.7584
 
Answer & Explanation Answer: B) 0.7854

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Q:

What is the value of [(cos 3θ + 2cos 5θ + cos 7θ)÷(cos θ + 2cos 3θ + cos 5θ)] + sin 2θ tan 3θ?

A) cos 2θ B) sin 2θ
C) tan 2θ D) cot θ sin 2θ
 
Answer & Explanation Answer: A) cos 2θ

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Q:

Coefficient of x in (x + 8)(6 -­ 3x) is

A) 18 B) 30
C) -18 D) -30
 
Answer & Explanation Answer: C) -18

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