6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

When a number is increased by 24, it becomes 110% of itself. What is the number?

A) 288	B) 360
C) 216	D) 240

Answer & Explanation Answer: D) 240

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Mayur can complete a work in 27 hours. If he is joined by Jayantika who is 100% more efficient, in what time will they together finish the work?

A) 6 hours	B) 3 hours
C) 9 hours	D) 10 hours

Answer & Explanation Answer: C) 9 hours

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

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

A) 6 , 612	B) 5 , 521
C) 4 , 46	D) 7 , 543

Answer & Explanation Answer: D) 7 , 543

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 1716

Q:

If tanA - cotA = x, then value of x is?

A) (1 + 2cos2A)/(sinA cosA)	B) (sinA cosA)/(1 - 2cos2A)
C) (sinA cosA)/(1 + 2cos2A)	D) (1 - 2cos2A)/(sinA cosA)

Answer & Explanation Answer: D) (1 - 2cos2A)/(sinA cosA)

Explanation:

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

0 1715

Q:

In $∆ ABC,$ ∠B=35°, ∠C=65° and the bisector of ∠BAC meets BC in D. Then ADB is

A) 40°	B) 75°
C) 90°	D) 105°

Answer & Explanation Answer: D) 105°

Explanation:

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Exam Prep: Bank Exams

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Q:

The bus fare between two cities is increased in the ratio 17:20. Find the increase in the fare, if the original fare is Rs. 425

A) Rs 500	B) Rs 100
C) Rs 200	D) Rs 75

Answer & Explanation Answer: D) Rs 75

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

0 1715

Q:

If $\frac{a}{b + c} = \frac{b}{c + a} = \frac{C}{b + a}$ then which one of the following statements is correct?

A) Each fraction is equal to 1 or -1	B) Each fraction is equal to 1/2 or 1
C) Each fraction is equal to 1/2 or -1	D) Each fraction is equal to 1.2 only

Answer & Explanation Answer: C) Each fraction is equal to 1/2 or -1

Explanation:

a/(b+c) = b/(c+a) = c/(a+b)

Taking reciprocal and adding 1 to each ratio we get;

(b+c)/a + 1 = b/(c+a) + 1 = c/(a+b) + 1

Or (a+b+c)/a = (a+b+c)/b = (a+b+c)/c

So this can only be equal when a=b=c or a+b+c = 0

When a=b=c we get

a/(b+c)= ½When a+b+c = 0 we get

b+c = -a

So a/(b+c) = -1

So the ratios are ½ or -1

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

The population of a town increases by 5% in the first year, by 6% in the second year and by 8% in third year. The present population of town is 120204. What was the population of the town 3 years ago?

A) 102000	B) 100000
C) 98000	D) 101204

Quantitative Aptitude - Arithmetic Ability Questions

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