Population of a city is 1,20,000, increasing at 10% per year. After 1 year, population is: MCQ with Answer and Explanation

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Population of a city is 1,20,000, increasing at 10% per year. After 1 year, population is:

A. 1,30,000

B. 1,32,000

C. 1,35,000

D. 1,28,000

Answer: Option B

Solution (By JKSSB Mock Tests)

1,20,000 × 1.1 = 1,32,000.

This question belongs to: Maths Percentage

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Question #1

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If 15% of a number is 75, the number is:

A. 450

B. 500

C. 400

D. 600

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Correct Answer: Option B

Explanation:
Let the number be x. 15% of x = 75 → 0.15x = 75 → x = 75 / 0.15 = 500.

This question belongs to: Maths Percentage

Question #2

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The price of a product increases by 20%, and then again by 20%. What is the net percentage increase?

A. 48%

B. 40%

C. 42%

D. 44%

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Correct Answer: Option D

Explanation:
Successive percentage formula: 20 + 20 + (20 * 20 / 100) = 40 + 4 = 44%.

This question belongs to: Maths Percentage

Question #3

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A number is increased by 10%, then increased by 20%, then decreased by 10%. Net percentage change:

A. 16% increase

B. 20% increase

C. 12.8% increase

D. 18.8% increase

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Correct Answer: Option D

Explanation:
1.1 × 1.2 × 0.9 = 1.188, increase 18.8%.

This question belongs to: Maths Percentage

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