6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A batsman makes a score of 111 runs in the 10th match and thus increases his average runs per match by 5. What will be his average after the 10th match?

A) 66	B) 61
C) 62	D) 64

Answer & Explanation Answer: A) 66

Explanation:

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Q:

wooden bowl is in shape of a hollow hemisphere of internal radius 9 cm and thickness 1 cm. Find the total surface area of the bowl?

A) 1376.58 sq cms	B) 2064.87 sq cms
C) 344.15 sq cms	D) 1197.42 sq cms

Answer & Explanation Answer: D) 1197.42 sq cms

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Filed Under: Volume and Surface Area
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Q:

The perimeters of a square and an equilateral triangle are equal. If the diagonal of the square is 9 cm, what is the area of the equilateral triangle?

A) 18√3 sq cm	B) 9√3 sq cm
C) 18√2 sq cm	D) 9√2 sq cm

Answer & Explanation Answer: A) 18√3 sq cm

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Filed Under: Area
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Q:

Factorise $24 x^{2} - 54 x - 15$

A) 3(2x + 5)(4x - 1)	B) 3(2x - 5)(4x + 1)
C) 2(3x - 5)(4x + 1)	D) 4(2x - 5)(3x + 1)

Answer & Explanation Answer: B) 3(2x - 5)(4x + 1)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

In the question, two equations I and II are given. You have to solve both the equations and give answer

$x^{2} - 11 x + 28 = 0 y^{2} - 18 y + 81 = 0$

A) x > y	B) x < y
C) x=y, or relation cannot be established between x and y	D) x ≥ y

Answer & Explanation Answer: B) x < y

Explanation:

x2 – 11x + 28=0

x2 – 7x – 4x + 28=0

x (x-7) – 4 (x-7)=0

(x-4) (x-7)=0 x=4, 7

y2 – 18y + 81=0

y2 –9y – 9y + 81=0

y (y-9) – 9 (y-9)=0

(y-9) (y-9)=0 y=9, 9

So, x<y.

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Q:

In the following question, select the odd number from the given alternatives.

A) 26	B) 50
C) 82	D) 120

Answer & Explanation Answer: D) 120

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

A person while buying a dress on sale spends Rs. 45 and saves Rs. 5, what is the percentage of his savings?

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

Answer & Explanation Answer: B) 10%

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Q:

What is the value of [1 – sin (90 – 2A)] / [1 + sin (90 + 2A)]?

A) sinA cosA	B) cot2A
C) tan2A	D) sin2A cosA

Quantitative Aptitude - Arithmetic Ability Questions

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