6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Arun took a loan of Rs. 29000 with simple interest for as many years as the rate of interest. If he paid Rs. 10440 as interest at the end of the loan period, what was the rate of interest?

A) 5.5%	B) 6%
C) 6.5%	D) 7%

Answer & Explanation Answer: B) 6%

Explanation:

Principle amount = Rs. 29000

Interest = Rs. 10440

Let rate of interest = r%

=> So, time = r years

According to the question,

10440 = 29000 x r x r/100

290 x r x r = 10440

r x r = 1044/29 = 36

r = 6

Hence, the rate of interest = 6% and time = 6 yrs.

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Filed Under: Simple Interest
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15 3043

Q:

The true discount on Rs.2562 due 4 months hence is Rs.122.The rate % is?

A) 12%	B) 13 (1/3)%
C) 15%	D) 14%

Answer & Explanation Answer: A) 12%

Explanation:

P.W = Rs.( 2562 - 122) = Rs.2440

S.I on Rs.2440 for 4 months is Rs.122

Rate = (100 x 122)/(2440 x [1/3]) % = 15%

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Filed Under: True Discount

21 3043

Q:

A shopkeeper sells a table at a discount of 20% and earns a profit of 60%. If he sells the same table at 40% discount, then what will be his new profit percent?

A) 20	B) 30
C) 35	D) 40

Answer & Explanation Answer: A) 20

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

6 3040

Q:

A bottle is full of dettol. One-third of it is taken out and then an equal amount of water is poured into the bottle to fill it. This operation is done four times. Find the final ratio of dettol and water in the bottle.

A) 13 : 55	B) 20 : 74
C) 16 : 65	D) 10 : 48

Answer & Explanation Answer: C) 16 : 65

Explanation:

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

2 3031

Q:

The value of $1 + 2^{2} + 2^{3} + 2^{4} + . . . + 2^{9}$ is

A) 255	B) 511
C) 1021	D) 2047

Answer & Explanation Answer: C) 1021

Explanation:

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Filed Under: Numbers
Exam Prep: Bank Exams , CAT

9 3029

Q:

Sunil and Gopal are partners in a business. Sunil invests Rs.20,000 for 9 months and Gopal invests Rs. 30,000 for 12 months. Find the share of Sunil from the total profit of Rs. 60,000.

A) Rs.15000	B) Rs.18000
C) Rs.25000	D) Rs.20000

Answer & Explanation Answer: D) Rs.20000

Explanation:

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Filed Under: Partnership
Exam Prep: Bank Exams

2 3028

Q:

3/4 divided by 2 is

A) 3/2	B) 2/3
C) 8/3	D) 3/8

Answer & Explanation Answer: D) 3/8

Explanation:

3/4 divided by 2

= 3/4/2

= 3/4x2

= 3/8.

Hence, 3/4 divided by 2 is equal to 3/8.

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Filed Under: Decimal Fractions
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3 3028

Q:

If the ratio of cost price and selling price is 4 : 5 ,then the percentage of profit will be

A) 20	B) 0.1
C) 10	D) 25

Quantitative Aptitude - Arithmetic Ability Questions

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