6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Aditya got 78% marks in the examination. If he secured 663 marks, find the maximum marks.

A) 700	B) 800
C) 750	D) 850

Answer & Explanation Answer: D) 850

Explanation:

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Q:

Out of the 60 students of a class, 29 took Mathematics, 32 took Biology and 8 took none of the two subjects. How many students took both Mathematics and Biology?

A) 8	B) 9
C) 7	D) 6

Answer & Explanation Answer: B) 9

Explanation:

Number of students who took only Mathematics n(m) = 29
Number of students who took only biology n(b) = 32
Total number of students n(t) = 60
Total number of students of both mathematics and biology n(m b) = 60 - 8 = 52
Total number of students who took both = 32 + 29 - 52 = 9

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Q:

What is the simplified value of ${cosec}^{6} A - \cot^{6} A - 3 {cosec}^{2} A \cot^{2} A$ ?

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

Answer & Explanation Answer: D) 1

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Q:

The four sides of a quadrilateral are in the ratio of 2:3:4:5 and its perimeter is 280m. The length of the longest side is

A) 100m	B) 150m
C) 175m	D) 180m

Answer & Explanation Answer: A) 100m

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Q:

A line cuts two concentric circles. The lengths of chords formed by that line on the two circles are 4 cm and 16 cm. What is the difference (in cm2) in squares of radii of two circles?

A) 240	B) 120
C) 60	D) 90

Answer & Explanation Answer: C) 60

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Q:

$∆ DEF$ is right angled at E. If cosD = 5/13, then what is the value of tanF?

A) 5/13	B) 5/12
C) 13/5	D) 13/12

Answer & Explanation Answer: B) 5/12

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Q:

Solve the following equation to find x: ${(x - 2)}^{2} - 36 = 0 : xεN$

A) 4	B) 8
C) -4	D) -8

Answer & Explanation Answer: B) 8

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Q:

In the given figure, PQRS is a square of side 20 cm and SR is extended to point T. If the length of QTis 25 cm, then what is the distance (in cm) between the centers O1 and O2 of the two circles?

A) 5√10	B) 4√10
C) 8√5	D) 16√2

Quantitative Aptitude - Arithmetic Ability Questions

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