If 40% of a number exceeds 25% of the same number by 36, find the number. MCQ with Answer and Explanation

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If 40% of a number exceeds 25% of the same number by 36, find the number.

A. 240

B. 260

C. 200

D. 220

Answer: Option A

Solution (By JKSSB Mock Tests)

0.4x - 0.25x = 0.15x = 36 x = 240.

This question belongs to: Maths Percentage

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Question #1

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The value of a machine depreciates at 10% per annum. If its present value is Rs. 64,800, what was its value 2 years ago?

A. Rs. 90,000

B. Rs. 75,000

C. Rs. 80,000

D. Rs. 85,000

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Correct Answer: Option C

Explanation:
Value 2 yrs ago = 64800 / (0.9×0.9) = 64800/0.81 = 80,000.

This question belongs to: Maths Percentage

Question #2

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A salary is increased by 30% and then decreased by 30%. What is the net change?

A. 9% increase

B. 0%

C. 6% decrease

D. 9% decrease

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Correct Answer: Option D

Explanation:
Net change = x^2 / 100 % decrease. 30^2 / 100 = 900 / 100 = 9% decrease.

This question belongs to: Maths Percentage

Question #3

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A number divided by 4, quotient increased by 25% then decreased by 20% gives 150. Number:

A. 540

B. 640

C. 600

D. 560

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Correct Answer: Option C

Explanation:
(N/4)×1.25×0.8 = (N/4)×1 = 150 → N/4=150 → N=600.

This question belongs to: Maths Percentage

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