Wage decreased 20% then increased 20%. Loss %: MCQ with Answer and Explanation

Wage decreased 20% then increased 20%. Loss %:

A. 0%

B. 2%

C. 4%

D. 5%

Answer: Option C

0.8×1.2 = 0.96, loss 4%.

This question belongs to: Maths Percentage

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Question #1 Report Error

A man buys 10 articles for Rs. 8 and sells 8 articles for Rs. 10. Find his profit percent.

A. 56.25%

B. 62.5%

C. 60%

D. 50%

Correct Answer: Option A

Explanation:
CP of 1 article = 8/10 = 0.8, SP of 1 = 10/8 = 1.25. Profit = 0.45, % = (0.45/0.8)×100 = 56.25%.

This question belongs to: Maths Percentage

Question #2 Report Error

In a class of 50, 40% are girls. Number of boys is:

A. 30

B. 32

C. 28

D. 25

Correct Answer: Option A

Explanation:
60% of 50 = 30 boys.

This question belongs to: Maths Percentage

Question #3 Report Error

Cost of 25 items = SP of 20 items. Profit %:

A. 22.5%

B. 20%

C. 25%

D. 30%

Correct Answer: Option C

Explanation:
Profit = (5/20)×100 = 25%.

This question belongs to: Maths Percentage