6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

36 is what percent of 80?

A) 54	B) 45
C) 60	D) 64

Answer & Explanation Answer: B) 45

Explanation:

Let 36 is p% of 80

=> p x 80/100 = 36

=> p = 36 x 10/8 = 45.

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Filed Under: Percentage
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7 3522

Q:

Cost of 8 pencils, 5 pens and 3 erasers is Rs 111. Cost of 9 pencils, 6 pens and 5 erasers is Rs 130. Cost of 16 pencils, 11 pens and 3 erasers is Rs 221. What is the cost (in Rs) of 39 pencils, 26 pens and 13 erasers?

A) 316	B) 546
C) 624	D) 482

Answer & Explanation Answer: B) 546

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

5 3521

Q:

What will be the ratio of simple interest earned by certain amount at the same rate of interestfor 4 years and 6 years ?

A) 1:2	B) 2:1
C) 2:3	D) 3:2

Answer & Explanation Answer: C) 2:3

Explanation:

Let p be the principle amount

And R% be the rate of interest

Then, required ratio = $(\frac{\frac{P \times 4 \times R}{100}}{\frac{P \times 6 \times R}{100}})$

$\Rightarrow \frac{4 P R}{6 P R}$ = 2:3

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Filed Under: Simple Interest
Exam Prep: GRE , GATE , CAT , Bank Exams
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2 3518

Q:

While selling a router, a shopkeeper gives a discount of 15%. If he gives a discount of 20%, he earns Rs. 51 less as profit. What is the original marked price of the router?

A) Rs. 1000	B) Rs. 1020
C) Rs. 1040	D) Rs. 980

Answer & Explanation Answer: B) Rs. 1020

Explanation:

Let the marked price of the router be Rs. P

From the given data,

$P x \frac{85}{100} - P x \frac{80}{100} = 51 P x \frac{5}{100} = 51 \Rightarrow P = \frac{5100}{5} = 1020$

Hence, the original marked price of the router is Rs. 1020.

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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7 3517

Q:

Calculate the future value of $3,000 invested at 7% for 5 years

A) 4207.66	B) 5207
C) 4376	D) 5687

Answer & Explanation Answer: A) 4207.66

Explanation:

F=P(1+i)^n

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

2 3517

Q:

Buy at 30 cell at 50. What is the profit percentage?

A) 20%	B) 40%
C) 45%	D) 35%

Answer & Explanation Answer: B) 40%

Explanation:

Cost price = Rs. 30

Selling price = Rs. 50

Gain = Rs. 20

Profit % = Gain/cost price x 100 = 20/50 x 100 = 40%

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Filed Under: Profit and Loss
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13 3515

Q:

G is twice as fast as S in doing work. If G can do a work in 30 days less than S, how many days will they take to complete the work together?

A) 25	B) 20
C) 22	D) 15

Answer & Explanation Answer: B) 20

Explanation:

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Filed Under: Time and Work
Exam Prep: Bank Exams

28 3515

Q:

Two partners M and N buy a car. M pays his share of 3/7th of the total cost of the car. M pays Rs. 31,540 less than N. What is the cost of the car?

A) Rs. 2,32,680	B) Rs. 2,03,175
C) Rs. 2,20,780	D) Rs. 1,85,780

Quantitative Aptitude - Arithmetic Ability Questions

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