6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If 10% loss is made on selling price, then the rate of loss on the cost price will be

A) 11 1/9%	B) 9 1/11%
C) 10%	D) 11%

Answer & Explanation Answer: A) 11 1/9%

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

1 1355

Q:

A merchant marks the price of his articles 20% above the cost price. If he allows 20% discount, then what is the profit or loss percentage?

A) 2% loss	B) 4% profit
C) 4% loss	D) No profit/loss

Answer & Explanation Answer: C) 4% loss

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

1 1354

Q:

An equilateral triangle ABC is inscribed in a circle of radius 20√3.
What is the length of the side of the triangle?

A) 30 cm	B) 40 cm
C) 50 cm	D) 60 cm

Answer & Explanation Answer: D) 60 cm

Explanation:

Radius of circumcircle of an equilateral triangle = side /√3

R = a/√3

a = R√3 = 20√3 *√3 = 60cm

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 1354

Q:

The height of a tower is 300 meters. When its top is seen from top of another tower,then the angle of depression is 60°. The horizontal distance between the bases of the two towers is 120 metres. What is the height (in metres) of the small tower?

A) 88.24	B) 106.71
C) 92.15	D) 112.64

Answer & Explanation Answer: C) 92.15

Explanation:

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Filed Under: Height and Distance
Exam Prep: Bank Exams

4 1354

Q:

If one more cobbler is hired the output of a shoe making unit will increase from 50 pairs of shoes to 55 pairs per day, but then the shoe making unit will have to reduce the price of a pair of shoes from Rs 3200 to Rs 3000 per pair to sell the additional output, the marginal revenue product of the last cobbler is

A) Rs 1000	B) Rs 5000
C) Rs 4000	D) Rs 200

Answer & Explanation Answer: B) Rs 5000

Explanation:

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

0 1354

Q:

If $a^{2} \sec^{2} x - b^{2} \tan^{2} x = c^{2}$ then the value of $\sec^{2} x + \tan^{2} x$ is equal to (assume b2 ≠ a2 )

A) b2-a2+2c2b2+a2	B) b2+a2-2c2b2-a2
C) b2-a2-2c2b2+a2	D) b2-a2b2+a2+2c2

Answer & Explanation Answer: B) b2+a2-2c2b2-a2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1354

Q:

Area of circle is equal to the area of a rectangle having perimeter of 50 cms. and length more than the breadth by 3 cms. What is the diameter of the circle?

A) 7 cms	B) 21 cms
C) 28 cms	D) 14 cms

Answer & Explanation Answer: D) 14 cms

Explanation:

Let the breadth of rectangle be x cm => Length of rectangle = (x+3) cm Now, perimeter =2(x+x+3) = 50 => 2x + 3 = 25 => x = 11 Thus, breadth = 11 cm and length = 14 cm Area of circle = Area of rectangle =>pi * r* r = 14 * 11 =>r*r = 14 * 11 * 7/22 =>r = 7 cm Diameter = 2 * 7 = 14 cm

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Filed Under: Area

1 1353

Q:

If P/Q = R/S = T/U = 3/4 is (4P + 5R + 7T) : (3Q + 4S + 7U)?

A) 12:19	B) 6:7
C) 3:4	D) 5:8

Quantitative Aptitude - Arithmetic Ability Questions

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