A number is decreased by 25% and then increased by 25%. The net change is: MCQ with Answer and Explanation

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A number is decreased by 25% and then increased by 25%. The net change is:

A. 6.25% decrease

B. 5% decrease

C. 6.25% increase

D. No change

Answer: Option A

Solution (By JKSSB Mock Tests)

0.75 × 1.25 = 0.9375, decrease 6.25%.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

If A is 25% less than B, then B is what percentage more than A?

A. 25%

B. 20%

C. 33.33%

D. 50%

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Correct Answer: Option C

Explanation:
Formula: (25 / 75) * 100 = (1 / 3) * 100 = 33.33%.

This question belongs to: Maths Percentage

Question #2

If A is 25% more than B, then B is what percentage less than A?

A. 25%

B. 30%

C. 20%

D. 15%

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Correct Answer: Option C

Explanation:
Formula: (R / (100 + R)) * 100. Here R = 25. (25 / 125) * 100 = (1 / 5) * 100 = 20%.

This question belongs to: Maths Percentage

Question #3

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. 75,000

B. Rs. 90,000

C. Rs. 85,000

D. Rs. 80,000

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Correct Answer: Option D

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

This question belongs to: Maths Percentage

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