6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If tanA - tanB = X, then the value of X is

A) (tanA + tanB)/(1 - tanAtanB)	B) (tanA + tanB)/(1 + tanAtanB)
C) (tanA - tanB)/(1- tanAtanB)	D) (tanA - tanB)/(1 + tanAtanB)

Answer & Explanation Answer: D) (tanA - tanB)/(1 + tanAtanB)

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Q:

Point P is the midpoint of segment AB. Co-ordinates of P are (5,-4) and A are (7,0). What will be the co-ordinates of point B?

A) (3, -8)	B) (-3, -8)
C) (3, 8)	D) (-3, 8)

Answer & Explanation Answer: A) (3, -8)

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Q:

If $13 x^{2} = 17^{2} - 9^{2}$ , find the value of x?

A) 16	B) 12
C) 8	D) 4

Answer & Explanation Answer: D) 4

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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:

Find the perimeter (in cm) of a semicircle of radius 28 cm.

A) 288	B) 144
C) 121	D) 242

Answer & Explanation Answer: B) 144

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

If one-third of a number is 45, then what will be the 45% of that number?

A) 60.75	B) 58.25
C) 61.25	D) 70.75

Answer & Explanation Answer: A) 60.75

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If by selling an article for Rs. 390 a shopkeeper gains 20% , then the cost is

A) Rs. 370	B) Rs. 325
C) Rs. 350	D) Rs. 300

Answer & Explanation Answer: B) Rs. 325

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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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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