A number is increased by 20% and then decreased by 15%. The resulting number is 204. Find the original number. MCQ with Answer and Explanation

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A number is increased by 20% and then decreased by 15%. The resulting number is 204. Find the original number.

A. 210

B. 180

C. 190

D. 200

Answer: Option D

Solution (By JKSSB Mock Tests)

1.2 × 0.85 = 1.02, 1.02x = 204 → x = 200.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

If x% of 300 = 45, then x is:

A. 12

B. 18

C. 15

D. 10

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Correct Answer: Option C

Explanation:
300 × x/100 = 45 → 3x = 45 → x = 15.

This question belongs to: Maths Percentage

Question #2

A man's income is Rs. 12000, he saves 20%. His savings are:

A. 3000

B. 2000

C. 2400

D. 2600

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Correct Answer: Option C

Explanation:
20% of 12000 = 2400.

This question belongs to: Maths Percentage

Question #3

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

A. 0%

B. 6% decrease

C. 9% decrease

D. 9% increase

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Correct Answer: Option C

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

This question belongs to: Maths Percentage

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