6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The traffic lights at four different road crossings change after every 15 sec, 18 sec, 27 sec and 30 sec respectively. If they all change simultaneously at 6:10:00 hours, then at what time will they again change simultaneously?

A) 6:14:30 hours	B) 6:40:00 hours
C) 6:14:00 hours	D) 10:40:00 hours

Answer & Explanation Answer: A) 6:14:30 hours

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

A sum of money invested for 2 yrs and 9 months at the rate of 8% simple interest per annum became Rs.732 at the end of the period. What was the sum that was initially invested?

A) Rs. 575	B) Rs. 500
C) Rs. 600	D) Rs. 550

Answer & Explanation Answer: C) Rs. 600

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

If $X^{2} + 4 y^{2} + z^{2} - 4 x - 2 z + 5 - 0, then find the value of \frac{y^{15} + x^{5}}{z^{14}}$

A) 32	B) 46
C) 58	D) 60

Answer & Explanation Answer: A) 32

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

If $r \sin θ = \sqrt{3}$ and $r \cos θ = 1$ , then the values of r and $θ$ are: $(0 ° ⩽ θ \leq 90 °)$

A) r=1, θ=30°	B) r=1⁄2, θ=30°
C) r=3 , θ=30°	D) r=2, θ=60°

Answer & Explanation Answer: D) r=2, θ=60°

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

If ${(secA - tanA)}^{2} = x$ , then the value of x is

A) (1 + sinA)/(1 - sinA)	B) √[(1 - sinA)/(1 + sinA)]
C) (1 - sinA)/(1 + sinA)	D) √[(1 + sinA)/(1 - sinA)]

Answer & Explanation Answer: C) (1 - sinA)/(1 + sinA)

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

After buying a toy for Rs. 66, Raghu managed to sell it at a profit of 15%. The selling price of the toy was

A) Rs. 75.90	B) Rs. 70.80
C) Rs. 75.20	D) Rs. 76.90

Answer & Explanation Answer: A) Rs. 75.90

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Filed Under: Profit and Loss
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

Answer & Explanation Answer: B) 7

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

How much does one need to add to 2/3 to obtain 3/2?

A) 5/6	B) 1.5/6
C) 1/-1	D) 4/9

Quantitative Aptitude - Arithmetic Ability Questions

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