6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

ΔABC is right angled at B. If m∠A = 60 deg, then find the value of (secC + 2)

A) (2+2√3)/√2	B) 4/3
C) (2+2√3)/√3	D) 4/√3

Answer & Explanation Answer: C) (2+2√3)/√3

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Q:

If the side of the equilateral triangle is 6√3 cm, then what is length (in cm) of the circum radius of that triangle?

A) 4	B) 6
C) 8	D) 12

Answer & Explanation Answer: B) 6

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Q:

The base and hypotenuse of a right angled triangle is 12 cm and 5 cm respectively. Find the circum-radius (in cm) of the triangle.

A) 5	B) 6
C) 6.5	D) 7

Answer & Explanation Answer: C) 6.5

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Q:

What is the value of 12 + 3(-2 x 3) - (18 / 6) ?

A) -5	B) 9
C) -9	D) 5

Answer & Explanation Answer: C) -9

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Filed Under: Simplification
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Q:

ΔABC is similar to ΔDEF. Length of AB is 12 cm and length of the corresponding side DE is 8 cm. What is the ratio of Perimeter of ΔABC : Perimeter of ΔDEF?

A) 9:4	B) 4:9
C) 3:2	D) 2:3

Answer & Explanation Answer: C) 3:2

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Q:

Which of the following is the prime number series from 1 to 20?

A) 1, 2, 3, 5, 7, 11, 13, 17, 19	B) 3, 5, 7, 11, 13,17, 19
C) 2, 5, 7, 9, 11, 13, 17, 19	D) 2, 3, 5, 7,11, 13, 17, 19

Answer & Explanation Answer: D) 2, 3, 5, 7,11, 13, 17, 19

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Filed Under: Problems on Numbers
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Q:

If the lengths of the two parallel sides of a trapezium are 7 cm and 9 cm and its area is 80 cm2. Find the distance between its parallel sides (in cm).

A) 5	B) 10
C) 20	D) 15

Answer & Explanation Answer: B) 10

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Q:

If the angles of a triangle are in the ratio of 2:3:5, then find the ratio of the greatest angle to the smallest angle.

A) 7:2	B) 5:2
C) 5:3	D) 3:5

Quantitative Aptitude - Arithmetic Ability Questions

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