6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A vendor buys chikoos at 15 for Rs 8 and then sells at 10 for Rs 6. What will be the result?

A) 12.5 percent loss	B) 11.11 percent gain
C) 12.5 percent gain	D) 11.1 percent loss

Answer & Explanation Answer: C) 12.5 percent gain

Explanation:

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

4 2212

Q:

The difference between two numbers is 25. The smaller number is 1/6th of the larger number. What is the value of the smaller number?

A) 10	B) 5
C) 50	D) 25

Answer & Explanation Answer: B) 5

Explanation:

Let the larger number be p

Then, smaller number = 1/6 x p = p/6

Given difference between two numbers = 25

p - p/6 = 25

5p/6 = 25

5p = 150

p = 30

Then, p/6 = 30/6 = 5

Hence, larger number = 30 and smaller number = 5 which makes the difference = 25.

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Filed Under: Problems on Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

3 2210

Q:

By selling a used phone for Rs.7260 Sanjan got 34% less than what it cost him to buy it a few years ago.At what price should Sanjan have sold the phone to gain a profit of 5%?

A) ₹ 11,460	B) ₹ 11,480
C) ₹ 11,440	D) None

Answer & Explanation Answer: D) None

Explanation:

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Filed Under: Profit and Loss

2 2209

Q:

Solve the following : 27 - [38 - {46 - (15 - 13 - 2)}]

A) 31	B) 35
C) 30	D) 29

Answer & Explanation Answer: B) 35

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

6 2209

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 2208

Q:

In the given figure, ABCDEF is a regular hexagon of side 12 cm. P, Q and R are the mid points of the sides AB, CD and EF respectively. What is the area (in sq.cm) of triangle PQR?

A) 27√6	B) 81√3
C) 54√3	D) 54√6

Answer & Explanation Answer: B) 81√3

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

2 2204

Q:

In a container, there is 960 ltr of pure milk from which 48 ltr of milk is replaced with 48 ltr of water, again 48 ltr milk is replaced by same amount of water, as this process is done once more. Now, what is the amount of pure milk?

A) 901.54 ltr	B) 821.54 ltr
C) 719.64 ltr	D) 823.08 ltr

Answer & Explanation Answer: D) 823.08 ltr

Explanation:

Amount of pure milk= a(1 –b/a)n(n = 3, a = pure milk and b = amount replaced)= 960 (1 –48/960)^3= 960(1-1/20)^3= 960 * 19/20 * 19/20*19/20= 823.08 lt.

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

1 2204

Q:

Hema takes a total of 9 hours 55 min to walk a certain distance and then cycling back to the same place from where she had started. She could walk both ways in 12 hours 30 min. The time she will take to cycle both ways is :

A) 7 hrs 20 min	B) 7 hrs 15 min
C) 7 hrs 35 min	D) 7 hrs 40 min

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