6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The length of a diagonal in cms of a rectangle of length 5 cm and width 6 cm is

A) 61	B) ±61
C) 11	D) ±11

Answer & Explanation Answer: A) 61

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

3 27274

Q:

What percent decrease in salaries would exactly cancel out the 20 percent increase ?

A) (16 + 2/3) %	B) (15 + 2/3)%
C) (14 +1/3)%	D) (13 + 4/5)%

Answer & Explanation Answer: A) (16 + 2/3) %

Explanation:

Let the orginal salary = Rs. 100. New's salary = Rs.120.

Decrease on 120 = 20. Decrease on 100 = [(20/120)*100]% = (16 + 2/3) %.

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Filed Under: Percentage

55 27273

Q:

The perimeter of a square is 26 cm. Find its area (in cm2).

A) 42.25	B) 84.5
C) 39.25	D) 78.5

Answer & Explanation Answer: A) 42.25

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 27262

Q:

A pump can fill a tank with water in 2 hours. Because of a leak, it took $2 \frac{1}{3}$ hours to fill the tank. The leak can drain all the water of the tank in:

A) 7 hours	B) 8 hours
C) 12 hours	D) 14 hours

Answer & Explanation Answer: D) 14 hours

Explanation:

If the total area of pump=1 part

The pumop take 2 hrs to fill 1 part

The pumop take1 hour to fill 1/2 portion

Due to lickage

The pumop take 7/3 hrs to fill 1 part

The pumop take1 hour to fill 3/7 portion

Now the difference of area = (1/2-3/7)=1/14

This 1/14 part of water drains in 1 hour

Total area=1 part of water drains in (1x14/1)hours= 14 hours

So the leak can drain all the water of the tank in 14 hours.

Leak will empty the tank in 14 hrs

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Filed Under: Pipes and Cistern
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

86 27252

Q:

Read the following information and answer the questions given below:

A has 28 elements, B has 32 elements and A U B has 40 elements.

How many elements are present only in B?

A) 28	B) 18
C) 12	D) 10

Answer & Explanation Answer: C) 12

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability

0 27232

Q:

A milk man sells the milk at the cost price but he mixes the water in it and thus he gains 9.09%. The quantity of water in the mixture of 1 liter is :

A) 83.33 ml	B) 90.90 ml
C) 99.09 ml	D) can't be determined

Answer & Explanation Answer: A) 83.33 ml

Explanation:

Profit (%) = 9.09 % = 1/11

Since the ratio of water and milk is 1 : 11,

Therefore the ratio of water is to mixture = 1:12

Thus the quantity of water in mixture of 1 liter = 1000 x (1/12) = 83.33 ml

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Filed Under: Alligation or Mixture

76 27212

Q:

In a game of 100 points, A can give B 20 points and C 28 points. Then, B can give C is

A) 8 points	B) 10 points
C) 14 points	D) 40 points

Answer & Explanation Answer: B) 10 points

Explanation:

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Filed Under: Races and Games

28 27179

Q:

For any two real numbers a and b.

$\sqrt{{(a - b)}^{2}} + \sqrt{{(b - a)}^{2}}$ is

A) always zero	B) never zero
C) positive only if a ≠ b	D) positive if an only if a > b

Quantitative Aptitude - Arithmetic Ability Questions

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