6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

In a city of engineers of 4800, the number of female engineers are 3/8th of them. The number of female engineers is what percentage of the number of male engineers?

A) 76	B) 60
C) 56	D) 52

Answer & Explanation Answer: B) 60

Explanation:

Total engineers = 4800

Number of female engineers = 3/8 x 4800 = 1800

Then, number of male engineers = 4800 - 1800 = 3000

Now, required is female engineers is what percentage of the number of male engineers

=> 1800 is what % of 3000

=> p x 3000/100 = 1800

=> 30p = 1800

p = 60%

Hence, female engineers is 60 percentage of the number of male engineers.

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

6 3878

Q:

3, 12, 5, ?

A) 36	B) 26
C) 30	D) 24

Answer & Explanation Answer: C) 30

Explanation:

$3 3^{2} + 3 = 12 5 5^{2} + 5 = 30$

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

10 3877

Q:

If there is a total of 104 weekly instalments and a third deposit, find the interest rate

A) 2.82	B) 3.82
C) 4.82	D) 5.82

Answer & Explanation Answer: C) 4.82

Explanation:

R = (100 x I)/( P x T)

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

0 3876

Q:

A bucket contains a mixture of two liquids A and B in the proportion 7: 5. If 9 litres of the mixture is replaced by 9 litres of liquid B, then the ratio of the two liquid becomes 7: 9. How much of the liquid A was there in the bucket ?

A) 21 litres	B) 15 litres
C) 23 litres	D) 18 litres

Answer & Explanation Answer: A) 21 litres

Explanation:

Suppose the two liquids A and B are 7x litres and 5x litres respectivel Now, when 9 litres of mixture are taken out,

Now, when 9 liters of liquid B are added

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Filed Under: Alligation or Mixture
Exam Prep: AIEEE , Bank Exams , GATE

9 3872

Q:

Find the probability of selecting 2 woman when four persons are choosen at random from a group of 3 men, 2 woman and 4 children.

A) 1/5	B) 1/7
C) 1/6	D) 1/9

Answer & Explanation Answer: C) 1/6

Explanation:

Out of 9 persons,4 can be choosen in $9 C_{4}$ ways =126.

Favourable events for given condition = $2 C_{2} * 7 C_{2}$ = 21.

So,required probability = 21/126 =1/6.

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Filed Under: Probability

1 3870

Q:

A 6% stock yields 8%. The market value of the stock is:

A) 70	B) 76
C) 75	D) 80

Answer & Explanation Answer: C) 75

Explanation:

For an income of Rs. 8, investment = Rs. 100.

For an income of Rs. 6, investment = $R s . (\frac{100}{8} * 6)$ = Rs. 75.

Market value of Rs. 100 stock = Rs. 75.

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Filed Under: Stocks and Shares

1 3864

Q:

If the difference between the mode and median is 2, then the difference between the median and mean is:

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

Answer & Explanation Answer: B) 1

Explanation:

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Filed Under: Probability
Exam Prep: Bank Exams

33 3862

Q:

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

A) Cow	B) Buffalo
C) Horse	D) Goat

Quantitative Aptitude - Arithmetic Ability Questions

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