6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find two natural numbers whose sum is 85 andtheleast common multiple is 102.

A) 30 & 55	B) 17 & 68
C) 35& 55	D) 51 & 34

Answer & Explanation Answer: D) 51 & 34

Explanation:

Let a + b = 85→b = 85 –a

LCM(a,b) =102→ab = 102

k→a(85 –a) = 102k, where k is a natural number.

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Filed Under: Numbers
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Q:

The area of a square is equal to its side, if the side is 1 unit.

A) Always	B) Sometimes
C) Often	D) Never

Answer & Explanation Answer: A) Always

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

What is the equation of the line perpendicular to the line 5x + 3y = 6 and having Y-intercept -3?

A) 3x - 5y = 15	B) 3x + 5y = 15
C) 3x - 5y = -15	D) 3x + 5y = -15

Answer & Explanation Answer: A) 3x - 5y = 15

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the value of sec 4π/3?

A) 2	B) -2
C) 2/√3	D) -2/√3

Answer & Explanation Answer: B) -2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) 156	B) 200
C) 182	D) 240

Answer & Explanation Answer: B) 200

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

HCF of two numbers is 19 and their LCM is 665. If one of the number is 95, find the other.

A) 19	B) 133
C) 190	D) 77

Answer & Explanation Answer: B) 133

Explanation:

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

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Q:

Expand and simplify ${(x + 5)}^{2} + {(x - 3)}^{2}$

A) 2(x2 + 2x - 17)	B) 2(x2 - 2x + 17)
C) 2(x2 - 2x - 17)	D) 2(x2 + 2x + 17)

Answer & Explanation Answer: D) 2(x2 + 2x + 17)

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the mean of the first five Triangular Numbers?

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

Quantitative Aptitude - Arithmetic Ability Questions

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