If the price of oil decreases by 25%, by what percentage can consumption be increased to maintain the same expenditure? MCQ with Answer and Explanation

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If the price of oil decreases by 25%, by what percentage can consumption be increased to maintain the same expenditure?

A. 30%

B. 20%

C. 33.33%

D. 25%

Answer: Option C

Solution (By JKSSB Mock Tests)

Required increase = (25 / 75) * 100 = 100 / 3 = 33.33%.

This question belongs to: Maths Percentage

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Question #1

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A student gets 180 marks and fails by 30 marks. The passing percentage is 35%. What is the total marks?

A. 500

B. 800

C. 600

D. 700

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Correct Answer: Option C

Explanation:
Passing marks = 180 + 30 = 210. 35% of Total = 210. Total = 210 * (100 / 35) = 600.

This question belongs to: Maths Percentage

Question #2

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In a 40-litre mixture of milk and water, the ratio is 3:2. How many litres of water must be added to change the ratio to 1:2?

A. 36 L

B. 32 L

C. 24 L

D. 28 L

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Correct Answer: Option B

Explanation:
Milk = 24, water = 16. For milk:water = 1:2, water = 48, add 32 L.

This question belongs to: Maths Percentage

Question #3

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Production increased from 6000 to 7200. Percentage increase:

A. 18%

B. 20%

C. 22%

D. 15%

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Correct Answer: Option B

Explanation:
(1200/6000)×100 = 20%.

This question belongs to: Maths Percentage

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