The population of a town is 120000. It increases by 15% in the first year and decreases by 10% in the second year. What is the population after two years? MCQ with Answer and Explanation

Question

The population of a town is 120000. It increases by 15% in the first year and decreases by 10% in the second year. What is the population after two years?

A. 124200

B. 123000

C. 125000

D. 126500

Answer: Option A

Solution (By JKExamLibrary)

120000 × 1.15 × 0.9 = 124200.

This question belongs to: Maths Percentage

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Question #1

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A's salary increased by 25% then decreased by 25%. Original salary 8000, final salary:

A. 7200

B. 7400

C. 7500

D. 7800

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Correct Answer: Option C

Explanation:
8000 × 1.25 × 0.75 = 8000 × 0.9375 = 7500.

This question belongs to: Maths Percentage

Question #2

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35 is what percent of 140?

A. 25%

B. 22.5%

C. 30%

D. 20%

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Correct Answer: Option A

Explanation:
(35/140)×100 = 25%.

This question belongs to: Maths Percentage

Question #3

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A number increased by 10% then decreased by 10% gives net:

A. 2% decrease

B. 0%

C. 1% increase

D. 1% decrease

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Correct Answer: Option D

Explanation:
1.1 × 0.9 = 0.99, 1% decrease.

This question belongs to: Maths Percentage

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