80 is what percent of 160? MCQ with Answer and Explanation

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80 is what percent of 160?

A. 55%

B. 50%

C. 40%

D. 45%

Answer: Option B

Solution (By JKSSB Mock Tests)

(80/160) × 100 = 50%.

This question belongs to: Maths Percentage

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Question #1

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A number is decreased by 10% and then increased by 20%. The net change is:

A. 6% increase

B. 8% increase

C. 12% increase

D. 10% increase

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Correct Answer: Option B

Explanation:
0.9 × 1.2 = 1.08, 8% increase.

This question belongs to: Maths Percentage

Question #2

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If the price of a book is increased by 20%, its new price is Rs. 180. Original price was:

A. 160

B. 150

C. 170

D. 140

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Correct Answer: Option B

Explanation:
Let original price be P. 1.2P = 180 → P = 150.

This question belongs to: Maths Percentage

Question #3

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Machine depreciates 15% per year. Present value Rs. 72,250, value 2 years ago was:

A. 1,00,000

B. 1,05,000

C. 95,000

D. 90,000

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Correct Answer: Option A

Explanation:
Value 2 years ago = 72250 / (0.85×0.85) = 72250 / 0.7225 = 1,00,000.

This question belongs to: Maths Percentage

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