6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Three unbiased coins are tossed.What is the probability of getting at least 2 heads?

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

Answer & Explanation Answer: B) 1/2

Explanation:

Here S= {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH}.

Let E = event of getting at least two heads = {THH, HTH, HHT, HHH}.

P(E) = n(E) / n(S)

= 4/8= 1/2

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Filed Under: Probability

92 46032

Q:

Simplify 5x(x + 2) + 4x

A) 5x2 + 10	B) 9x + 10
C) 5x2 - 14x	D) 5x2 + 14x

Answer & Explanation Answer: D) 5x2 + 14x

Explanation:

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams

0 45972

Q:

The length and breadth of a rectangle are 15 cm and 8 cm respectively. Calculate its perimeter (in cm).

A) 46	B) 92
C) 35	D) 70

Answer & Explanation Answer: A) 46

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 45950

Q:

Compute of 15872/32/4 = ?

A) 142	B) 1984
C) 124	D) 1948

Answer & Explanation Answer: C) 124

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

2 45861

Q:

ΔXYZ is right angled at Y. If m∠Z = 30°, then find the value of (sinX - 3/√2).

A) (√6-6)/2√2	B) (√2-√3)/√6
C) -1/2	D) (1-2√3)/2

Answer & Explanation Answer: A) (√6-6)/2√2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 45857

Q:

Given w = -2, x = 3, y = 0 & z = -1/2. Find the value of $2 (w^{2} + x^{2} + y^{2})$ .

A) 26	B) -26
C) 25	D) 28

Answer & Explanation Answer: A) 26

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

1 45831

Q:

Which value is closest to [5.168 x 4453 x 3.194 / 67.999 x 4224.017]

A) 0.2	B) 0.002
C) 2	D) 0.02

Answer & Explanation Answer: A) 0.2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 45775

Q:

Find the value of ${[7 {(64^{\frac{1}{3}} + 27^{\frac{1}{3}})}^{3}]}^{\frac{1}{4}}$

A) 7	B) 6
C) 49	D) 343

Quantitative Aptitude - Arithmetic Ability Questions

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