The price of an article increases by 10%, and then again by 10%. What is the net percentage increase? MCQ with Answer and Explanation

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The price of an article increases by 10%, and then again by 10%. What is the net percentage increase?

A. 22%

B. 20%

C. 21%

D. 25%

Answer: Option C

Solution (By JKSSB Mock Tests)

Successive percentage formula: a + b + (ab / 100). 10 + 10 + (10 * 10 / 100) = 20 + 1 = 21%.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

In a class of 50 students, 60% are boys. Number of girls is:

A. 25

B. 30

C. 35

D. 20

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Correct Answer: Option D

Explanation:
Girls = 40% of 50 = 20.

This question belongs to: Maths Percentage

Question #2

Student A gets 25% marks and fails by 20 marks. Student B gets 40% marks and passes by 40 marks. Find the total marks.

A. 600

B. 300

C. 500

D. 400

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Correct Answer: Option D

Explanation:
Difference in percentage = 40% - 25% = 15%. Difference in marks = 40 + 20 = 60. 15% of Total = 60. Total = 400.

This question belongs to: Maths Percentage

Question #3

A number is increased by 25% and then the result is decreased by 25%. If the final number is 75, find the original number.

A. 75

B. 85

C. 70

D. 80

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Correct Answer: Option D

Explanation:
1.25 × 0.75 = 0.9375, 0.9375x = 75 → x = 80.

This question belongs to: Maths Percentage

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