Weight reduced from 80 kg to 72 kg. Percentage decrease: MCQ with Answer and Explanation

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Weight reduced from 80 kg to 72 kg. Percentage decrease:

A. 10%

B. 8%

C. 12%

D. 15%

Answer: Option A

Solution (By JKSSB Mock Tests)

Decrease = 8 kg, (8/80)×100 = 10%.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

Price increased 15% then 10%. Single equivalent increase:

A. 26.5%

B. 24.5%

C. 27%

D. 25%

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Correct Answer: Option A

Explanation:
1.15 × 1.1 = 1.265, increase 26.5%.

This question belongs to: Maths Percentage

Question #2

A man saves 30% of his income. If his income increases by 20% and expenditure increases by 10%, his savings increase by:

A. 43.33%

B. 40%

C. 33.33%

D. 50%

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Correct Answer: Option A

Explanation:
Income 100, exp 70, sav 30. New income 120, new exp 70×1.1=77, sav 43. Increase 13, % = (13/30)×100 = 43.33%.

This question belongs to: Maths Percentage

Question #3

In 60 L of milk-water mixture, water is 10%. How much water must be added to make water 25%?

A. 6 L

B. 8 L

C. 10 L

D. 12 L

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Correct Answer: Option D

Explanation:
Water = 6 L, milk = 54 L. For water 25%, milk 75%, total = 54/0.75 = 72 L, add 12 L.

This question belongs to: Maths Percentage

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