6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the value of (2 - sin30°) ?

A) 3/2	B) 3/√2
C) 2-√3	D) (2√3-√6)/2√2

Answer & Explanation Answer: A) 3/2

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Q:

What is the value of xy if x - y = 3 and $x^{2} + y^{2} = 15$ ?

A) 1	B) 3
C) 5	D) 7

Answer & Explanation Answer: B) 3

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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:

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

A) 63-36	B) 45-74
C) 48-84	D) 26-62

Answer & Explanation Answer: B) 45-74

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Q:

By increasing the price of entry ticket to a fair in the ratio 13:16, the number of visitors to the fair has decreased in the ratio 11:9. In what ratio has the total collection increased or decreased?

A) decreased in the ratio 144:143	B) increased in the ratio 117:176
C) increased in the ratio 143:144	D) decreased in the ratio 176:117

Answer & Explanation Answer: C) increased in the ratio 143:144

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Filed Under: Ratios and Proportions
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Q:

Two numbers are in the ratio 5:6 when 6 is added to each, the ratio becomes 7:8 then the numbers are

A) 10 & 12	B) 20 & 24
C) 15 & 18	D) 5 & 6

Answer & Explanation Answer: C) 15 & 18

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Q:

If $x = \frac{4 \sqrt{ab}}{\sqrt{a} + \sqrt{b}}$ , then what is the value of $\frac{x + 2 \sqrt{a}}{x - 2 \sqrt{a}} + \frac{x + 2 \sqrt{b}}{x - 2 \sqrt{b}}$ ?

A) 0	B) 2
C) 4	D) 1

Answer & Explanation Answer: B) 2

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Q:

In the following question, select the odd letter pair from the given alternatives.

A) BN – P	B) GI – R
C) LM – Y	D) TA – U

Quantitative Aptitude - Arithmetic Ability Questions

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