6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the value of [cos (90 + A)÷sec (270 – A)] + [sin (270 + A)÷cosec (630 – A)]?

A) 3 sec A	B) tan A sec A
C) 0	D) 1

Answer & Explanation Answer: D) 1

Explanation:

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Q:

The average value of property of Agil, Mugilan and Anithais Rs. 130cr. The Property of Agil is 20cr greater than the property value of Mugilan and Anitha property value is 50cr greater than the Agil property value. The value ofproperty of Anitha is

A) 120 cr	B) 170 cr
C) 100 cr	D) 150 cr

Answer & Explanation Answer: B) 170 cr

Explanation:

Property value of Mugilan x

130 × 3 = x + x + 20 + x + 20 + 50

390 = 3x + 90

3x = 300

X = 100

Anitha = 100 + 20 + 50 = 170

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Filed Under: Numbers
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Q:

An equilateral triangle of side 6 cm is inscribed in a circle. Then radius of the circle is

A) 2√3 cm	B) 3√2 cm
C) 4√3 cm	D) √3 cm

Answer & Explanation Answer: A) 2√3 cm

Explanation:

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Filed Under: Area
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Q:

The number of trees in a town is 17640. If the numbers of trees increases annually at the rate of 5%, then how many trees were there 2 years ago?

A) 14000	B) 15000
C) 16000	D) 18000

Answer & Explanation Answer: C) 16000

Explanation:

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Q:

The value of ${cosec}^{2} 60 + \sec^{2} 60 \cot^{2} 60 + \tan^{2} 30$ will be

A) 5	B) 5 1/2
C) 5 1/3	D) 5 2/3

Answer & Explanation Answer: C) 5 1/3

Explanation:

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Q:

If Cot θ = 21/20, then what is the value of Sec θ?

A) 29/21	B) 21/29
C) 29/20	D) 20/29

Answer & Explanation Answer: A) 29/21

Explanation:

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Q:

Find the standard deviation of {11, 7, 10,13, 9}

A) 1	B) 2
C) 4	D) 5

Answer & Explanation Answer: B) 2

Explanation:

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Filed Under: Probability
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Q:

60% of P = 50% of Q and Q = x% of P. What is the value of x?

A) 130	B) 120
C) 140	D) 80

Quantitative Aptitude - Arithmetic Ability Questions

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