6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the reflection of the point (-1 , 3) in the line x = -4?

A) (-7 ,-3)	B) (-7 ,3)
C) (7 ,-3)	D) (7 ,3)

Answer & Explanation Answer: B) (-7 ,3)

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Q:

Simplify $\frac{81 x^{2} - 49 y^{2}}{9 x + 7 y}$

A) 9x++7y	B) 9x-7y
C) 9x	D) 7y

Answer & Explanation Answer: B) 9x-7y

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Q:

The average height of A, B and C is 148 cm. If the average height of A and B is 136 cm and that of B and C is 125 cm, then what is the height (in cm) of B?

A) 56	B) 78
C) 112	D) 130

Answer & Explanation Answer: B) 78

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Q:

The age of A is three times the age of B. What is the ratio of the age of B to the age of A?

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

Answer & Explanation Answer: A) 1:3

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Q:

Pipe A can fill an empty cistern in 4 hours while along with Pipe B it can fill it up in 3 hours. Only Pipe A is turned on for an hour after which Pipe B is also turned on. How much total time will it take to fill up the cistern?

A) 3 hrs 20 min	B) 3 hrs 25 min
C) 3 hrs 15 min	D) 3 hrs

Answer & Explanation Answer: C) 3 hrs 15 min

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Q:

Which of the following is correct?

A) (3x + 4y)(4x - 3y) = 12x2 + 7xy - 12y2	B) (3x + 4y)(4x - 3y) = 12x2 + 251xy - 12y2
C) (3x + 4y)(4x - 3y) = 12x2 - 7xy + 12y2	D) (3x + 4y)(4x - 3y) = 12x2 - 251xy + 12y2

Answer & Explanation Answer: A) (3x + 4y)(4x - 3y) = 12x2 + 7xy - 12y2

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Q:

Divya and Kriti have total 46 candies. If Divya has 10 candies more than kriti, then find the total number of candies Divya have?

A) 20	B) 24
C) 28	D) 32

Answer & Explanation Answer: C) 28

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Q:

Which of the numbers given below is NOT rational?

A) 3√8	B) 3√64
C) √64	D) √8

Quantitative Aptitude - Arithmetic Ability Questions

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