20 is what percent of 80? MCQ with Answer and Explanation

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20 is what percent of 80?

A. 20%

B. 30%

C. 35%

D. 25%

Answer: Option D

Solution (By JKSSB Mock Tests)

(20/80)×100 = 25%.

This question belongs to: Maths Percentage

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Question #1

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Original salary 20000, increased 10% then decreased 10%. Final salary:

A. 20200

B. 20000

C. 19800

D. 19600

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Correct Answer: Option C

Explanation:
20000×1.1×0.9 = 19800.

This question belongs to: Maths Percentage

Question #2

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A student has to secure 33% marks to pass. He gets 120 marks and fails by 12 marks. Find the maximum marks.

A. 400

B. 450

C. 500

D. 350

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Correct Answer: Option A

Explanation:
Passing marks = 120 + 12 = 132. 33% of Maximum = 132. Maximum = 132 * (100 / 33) = 400.

This question belongs to: Maths Percentage

Question #3

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A dishonest shopkeeper uses 800 g weight instead of 1 kg. His profit %:

A. 25%

B. 30%

C. 22.5%

D. 20%

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Correct Answer: Option A

Explanation:
Profit = (200/800)×100 = 25%.

This question belongs to: Maths Percentage

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