6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If 14.35 - (1.956 - x ) - 83.92 = 3.858 then what is the value of x?

A) -92.456	B) 75.384
C) 71.472	D) 104.084

Answer & Explanation Answer: B) 75.384

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Q:

Which of the following is correct?

A) (3x - 2y)2 = 9x2 - 12xy + 4y2	B) (3x - 2y)2 = 9x2 - 6xy + 4y2
C) (3x + 2y)2 = 9x2 - 12xy + 4y2	D) (3x + 2y)2 = 9x2 - 6xy + 4y2

Answer & Explanation Answer: A) (3x - 2y)2 = 9x2 - 12xy + 4y2

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Q:

If secA/√(sec2A - 1) = x, then value of x is

A) tanA	B) cosecA
C) sinA	D) cosA

Answer & Explanation Answer: B) cosecA

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Q:

The value of cos (1110 $°$ ) is

A) √3/2	B) 1/2
C) 1/√2	D) 1

Answer & Explanation Answer: B) 1/2

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Q:

30% discount is offered on an item. By applying a promo code the customer wins 10% cash back. What is the effective discount?

A) 40.7 percent	B) 40 percent
C) 37 percent	D) 13 percent

Answer & Explanation Answer: C) 37 percent

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Filed Under: Percentage
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Q:

Find out the odd word/letters/number/number pair from the given alternatives.

A) 2543	B) 2192
C) 9362	D) 3713

Answer & Explanation Answer: C) 9362

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Q:

Of three positive numbers, the ratio of first and second is 5 : 2, ratio of second and third is 5 : 4. The product of first and third is 1800. What is the sum of the three numbers?

A) 43	B) 133
C) 119	D) 129

Answer & Explanation Answer: D) 129

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Filed Under: Ratios and Proportions
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Q:

An 80 litre mixture of water and acid contains 20% acid. How much acid should be added to make the acid 60% in the new mixture?

A) 60	B) 80
C) 70	D) 90

Quantitative Aptitude - Arithmetic Ability Questions

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