6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If x , y, and z are real numbers such that ${(x - 3)}^{2} + {(y - 4)}^{2} + {(z - 5)}^{2} = 0$ then (x+y+z) is equal to

A) -12	B) 0
C) 8	D) 12

Answer & Explanation Answer: D) 12

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Q:

In the given figure, AQ = 4√2 cm, QC = 6√2 cm and AB = 20 cm. If PQ is parallel to BC, then what is the value of PB (in cm) ?

A) 8	B) 12
C) 6	D) 15

Answer & Explanation Answer: B) 12

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Q:

54% of 4000 is

A) 2025	B) 2172
C) 2232	D) 2160

Answer & Explanation Answer: D) 2160

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Q:

The mode of the data -3, 4, 0, 4, -2, -5, 1, 7, 10, 5 is

A) 0	B) 4
C) -2	D) 7

Answer & Explanation Answer: B) 4

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Q:

If x = 1 + √2 + √3, then the value of $x^{2} - 2 x - 4 = 0$

A) √6	B) 2√3
C) 3√2	D) 2√6

Answer & Explanation Answer: D) 2√6

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Q:

If ${(cotA - cosecA)}^{2} = x$ , then the value of x is

A) (1 - cosA)/(1 + cosA)	B) (1 - sinA)/(1 + sinA)
C) (1 - secA)/(1 + secA)	D) (1 - cosecA)/(1 + cosecA)

Answer & Explanation Answer: A) (1 - cosA)/(1 + cosA)

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Q:

If √ $(1 + \cot^{2} A) / cotA = x$ , then the value of x is

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

Answer & Explanation Answer: C) secA

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Q:

Expand and simplify ${(3 x + 2)}^{2} * (4 x - 3) - (2 x^{3} - 9 x^{2} + 12 x - 24)$

A) 34x3 + 30x2 - 32x - 12	B) 34x3 + 30x2 - 32x + 12
C) 34x3 - 30x2 - 32x + 12	D) 34x3 - 30x2 + 32x - 12

Quantitative Aptitude - Arithmetic Ability Questions

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