6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A train moves at a speed of 35 m/sec and crosses a tunnel of length 960 metres, in 40 seconds. What is the length (in metres) of the train?

A) 360	B) 440
C) 530	D) 560

Answer & Explanation Answer: B) 440

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Q:

What is the perimeter of the sector whose central angle is 60° and radius of the circle is 21 cm?

A) 128 cm	B) 96 cm
C) 64 cm	D) 32 cm

Answer & Explanation Answer: C) 64 cm

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Q:

What is the value of $2 \sec^{2} A$ ?

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

Answer & Explanation Answer: C) cosecA/(cosecA - 1) + cosecA/(cosecA +1)

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Q:

CAlculate : $\frac{7 |2 - 6| - 4 |5| \div 5}{- 7 (2) - 2 \times 2 \div 2 + 2}$

A) -16/18	B) -14/7
C) -12/7	D) -12/18

Answer & Explanation Answer: C) -12/7

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Q:

If (cosecA - 1)/(cosecA + 1) = x, then the value of x is

A) (sinA/(1 + cosA))2	B) cosA/(1 + sinA)
C) (cosA/(1 + sinA))2	D) sinA/(1 + cosA)

Answer & Explanation Answer: C) (cosA/(1 + sinA))2

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Q:

What should be added to 3(x - 2y) to obtain 2(3x + y) - 5(2x + 3)?

A) 8y - 7x - 15	B) 8y - 7x + 15
C) 8y + 7x + 15	D) 8y + 7x - 15

Answer & Explanation Answer: A) 8y - 7x - 15

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Q:

Find the area (in cm²) of a semi-circle of radius 21 cm.

A) 1386	B) 960
C) 693	D) 1920

Answer & Explanation Answer: C) 693

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Q:

(−12)[11+7×(−3)]÷{}[413−(−3)×(−6)]=

A) 6	B) -4
C) 4	D) -2

Quantitative Aptitude - Arithmetic Ability Questions

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