6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $(1 + \frac{1}{2}) (1 + \frac{1}{4}) (1 + \frac{1}{6}) (1 + \frac{1}{8}) (1 - \frac{1}{3}) (1 - \frac{1}{5}) (1 - \frac{1}{7}) = 1 + \frac{1}{x}$ , then what is the value of x?

A) 6	B) 8
C) 5	D) 7

Answer & Explanation Answer: B) 8

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Filed Under: Simplification
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Q:

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

A) 992	B) 848
C) 749	D) 777

Answer & Explanation Answer: D) 777

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Filed Under: Odd Man Out
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Q:

Two circles touch each other internally. The radius of the larger circle is 6 cm and the distance between the centre is 2 cm, then the radius (in cms) of the other circle is

A) 8	B) 2
C) 4	D) 3

Answer & Explanation Answer: C) 4

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

What is the simplified value of ${(\frac{1}{cosec A + \cot A})}^{2}$ ?

A) sec A + tan A	B) (1 – cos A)/(1 + cos A)
C) (1 – cosec A)/(1 + cosec A)	D) sin A

Answer & Explanation Answer: B) (1 – cos A)/(1 + cos A)

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

If the measure of the interior angle of a regular polygon is 90 deg greater than the measure of its exterior angle, then how many sides does it have ?

A) 8	B) 9
C) 10	D) 12

Answer & Explanation Answer: A) 8

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Filed Under: Volume and Surface Area
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Q:

Average age of 5 students of a school is 14 years. The average age of students and their Mathematics and science teachers is 30 years. If the age of science teacher is 6 years more than the age of Mathematics teacher, then what is the age (in years) of Mathematics teacher?

A) 67	B) 68
C) 56	D) 74

Answer & Explanation Answer: A) 67

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Filed Under: Problems on Ages
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Q:

In ΔABC, the medians AD and BE meet at G. The ratio of the areas of ΔBDG and the quadrilateral GDCE is

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

Answer & Explanation Answer: A) 1 : 2

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Filed Under: Volume and Surface Area
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Q:

Two adjacent sides of a parallelogram are 21 cms and 20 cms. The diagonal joining the end points of these two sides is 29 cms. The area of the parallelogram (in sq.cms) is

A) 240	B) 120
C) 210	D) 420

Quantitative Aptitude - Arithmetic Ability Questions

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