6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the equation of the line passing through the point (0,4) and making an angle of 45° with the positive xaxis?

A) x + y = 4	B) x - y = - 4
C) x + y = -4	D) x - y = 4

Answer & Explanation Answer: C) x + y = -4

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Filed Under: Simplification
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Q:

In a class consisting of boys and girls, there are 45 students. If three fifth of the students are boys, find the number of boys in the class.

A) 25	B) 26
C) 27	D) 28

Answer & Explanation Answer: C) 27

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Filed Under: Percentage
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Q:

If cot 240° = x, then the value of x is

A) -1	B) -1/√3
C) 1/√3	D) √3

Answer & Explanation Answer: C) 1/√3

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Filed Under: Simplification
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Q:

Find the value of 'a' for which $x + \sqrt{3 x} + \frac{a^{2}}{4}$ is a perfect square.

A) √3	B) 2√3
C) 3√3	D) 4√3

Answer & Explanation Answer: A) √3

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Q:

If $XY = \frac{a + 2}{3} and \frac{Y}{X} = \frac{1}{3}$ , then find the value of $\frac{X^{2} + Y^{2}}{X^{2} - Y^{2}}$ .

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: B) 2

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Q:

The simplification value of $\frac{\sqrt[3]{7}}{\sqrt{5} + \sqrt{2}} - \frac{\sqrt[5]{5}}{\sqrt{2} + \sqrt{7}} + \frac{\sqrt[2]{2}}{\sqrt{7} + \sqrt{5}}$ is

A) 0	B) 1
C) 5	D) 6

Answer & Explanation Answer: A) 0

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.

A) 4	B) 3
C) 2	D) -1

Answer & Explanation Answer: B) 3

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

A cylindrical vessel of radius 8 cm is partially filled with water. By how much will the water level rise if a sphere of radius 7 cm is completely immersed in this water?

A) 7.15 cm	B) 14.3 cm
C) 21.45 cm	D) 28.6 cm

Quantitative Aptitude - Arithmetic Ability Questions

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