6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If the average of 31, x, 42, 39, 56, 78, 83 and 91 is 58.5, then what is the value of x?

A) 26	B) 34
C) 58	D) 48

Answer & Explanation Answer: D) 48

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

2 4544

Q:

If the standard deviation of a population is 3, what would be the population variance?

A) 9	B) 6
C) 8	D) 15

Answer & Explanation Answer: A) 9

Explanation:

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Filed Under: Probability
Exam Prep: Bank Exams

4 4540

Q:

Mr. X sold two properties P1 and P2 for Rs 1,00,000 each. He sold property P1 for 20% less than what he paid for it. What is the percentage of profit of property P2, so that he is not in gain or loss on the sale of two properties?

A) 33.33%	B) 29.97%
C) 25%	D) 22.22%

Answer & Explanation Answer: A) 33.33%

Explanation:

Let 'A' be the cost price of property P1.

Then from the given data, the selling price of P1 = Rs. 1,00,000

He got 20% loss on selling P1

$\Rightarrow A - \frac{20 A}{100} = 100000 \Rightarrow A = 1, 25, 000$

Therefore, the amount he lossed on selling P1 = 25,000

As ge he got no loss or gain on sale of P1 and P2, the gain on selling P2 = 25,000

But the selling price of P2 = 1,00,000 => Cost price of P2 = 75,000

Hence, the profit percentage on P2 = $\frac{Gain}{CP} x 100 = \frac{25000}{75000} x 100 = \frac{100}{3} = 33.33 %$

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

10 4537

Q:

If 4/7 of P is equal to 12/14 of Q, then what is P : Q?

A) 15 : 8	B) 14 : 9
C) 7 : 8	D) 3 : 2

Answer & Explanation Answer: D) 3 : 2

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 4535

Q:

A person in a bet 40 shots taken. 50p for a hit, 10p for a miss.(he have to give). Finally he has Rs.5. How many hits he have ?

A) 15	B) 20
C) 25	D) 30

Answer & Explanation Answer: A) 15

Explanation:

Let number of hit shots be 'X'
Let number of miss shots be 'Y'
Given X + Y = 40....(1)
50X - 10Y = 500.....(2)
Solving 1 and 2, we get
X = 15 and Y = 25
Therefore, number of hits = 15

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

2 4534

Q:

If a, b, c be the $p^{t h}, q^{t h} a n d r^{t h}$ terms of a GP then the value of (q-r) log a + (r-p) log b + (p-q) log c is :

A) 0	B) 1
C) -1	D) pqr

Answer & Explanation Answer: A) 0

Explanation:

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Filed Under: Logarithms
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

12 4528

Q:

$\frac{{(0.3)}^{3} + {(0.2)}^{3}}{{(0.3 - 0.2)}^{2}} = ?$

A) 5/2	B) 2
C) 7/2	D) 3/2

Answer & Explanation Answer: C) 7/2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 4528

Q:

Choose the figure which is different from the rest three.

A) 1	B) 3
C) 2	D) 4

Quantitative Aptitude - Arithmetic Ability Questions

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