6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If two marbles are picked at random, what is the probability that either both are red or both are green?

A) 5/7	B) 5/14
C) 1/7	D) 1/14

Answer & Explanation Answer: C) 1/7

Explanation:

Required probability = $\frac{(10 + 3)}{91} = \frac{13}{91} = \frac{1}{7}$

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE
Job Role: Bank Clerk , Bank PO

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Q:

In ΔPQR, ∠R = 54°, the perpendicular bisector of PQ at S meets QR at T. If ∠TPR = 46°, then what is the value (in degrees) of ∠PQR?

A) 25	B) 40
C) 50	D) 60

Answer & Explanation Answer: B) 40

Explanation:

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

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Q:

The distance between two pillars is 120 metres. The height of one pillar is thrice the other. The angles of elevation of their tops from the midpoint of the line connecting their feet are complementary to each other. The height (in metres) of the taller pillar is (Use : √3 = 1.732)

A) 34.64	B) 51.96
C) 69.28	D) 103.92

Answer & Explanation Answer: D) 103.92

Explanation:

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

Two whole numbers are such that the cube of first number exceeds the cube of second by 61 and the ratio of the numbers is 5:4. What is the value of larger number?

A) 3	B) 4
C) 5	D) 6

Answer & Explanation Answer: C) 5

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams , CAT

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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:

What is the value of 53% of 7400?

A) 4312	B) 3478
C) 3922	D) 4124

Answer & Explanation Answer: C) 3922

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams , CAT

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Q:

If a sum of money deposited in a bank at simple interest is doubled in 6 years, then after 12 years, the amount will be

A) 5/2times the original amount	B) 3times the original amount
C) 7/2times the original amount	D) 4times the original amount

Answer & Explanation Answer: B) 3times the original amount

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the value of $\frac{1}{\sin^{4} (90 - θ)} + \frac{1}{[\cos^{2} (90 - θ) - 1]}$ ?

A) tan2θ sec2θ	B) sec4θ
C) tan4θ	D) tan2θ sin2θ

Quantitative Aptitude - Arithmetic Ability Questions

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