6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is that least number that must be added to the product 684 × 686 to make it a perfect square?

A) 685	B) 1
C) 684	D) 686

Answer & Explanation Answer: B) 1

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

The value of $\cos^{2} 20 ° + \cos^{2} 70 °$ is

A) √2	B) 2
C) 1	D) 1/√2

Answer & Explanation Answer: C) 1

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

Breadth of a rectangle is equal to the diagonal of the square whose side is 2.5√2 cm. Ratio between length and breadth of rectangle is 3 : 1. Find the area of the rectangle (in cm2).

A) 75	B) 90
C) 85	D) 80

Answer & Explanation Answer: A) 75

Explanation:

Diagonal of Square = Side √2= 2.5√2 × √2= 5 cm
Breadth = 5 cm
Length of rectangle = 5 × 3 = 15 cm
Area of rectangle = 15 × 5 = 75 cm2

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

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Q:

Find the odd word/letters/number from the given alternatives.

A) Throat	B) Eye
C) Ear	D) Skin

Answer & Explanation Answer: A) Throat

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

The mode of the data -3, 4, 0, 4, -2, -5, 1, 7, 10, 5 is

A) 0	B) 4
C) -2	D) 7

Answer & Explanation Answer: B) 4

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Filed Under: Simplification

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Q:

If x = 1 + √2 + √3, then the value of $x^{2} - 2 x - 4 = 0$

A) √6	B) 2√3
C) 3√2	D) 2√6

Answer & Explanation Answer: D) 2√6

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the value of (cot30°+ 2/√3) ?

A) 5/√3	B) (1+2√3)/2
C) 5/6	D) 2/√3

Answer & Explanation Answer: A) 5/√3

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams , CAT

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Q:

Find length of the arc whose central angle is 45° and radius of the circle is 28 cm?

A) 11 cm	B) 33 cm
C) 44 cm	D) 22 cm

Quantitative Aptitude - Arithmetic Ability Questions

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