If the price of sugar increases by 20%, by how much percent must consumption be reduced to keep expenditure constant? MCQ with Answer and Explanation

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If the price of sugar increases by 20%, by how much percent must consumption be reduced to keep expenditure constant?

A. 25%

B. 16.67%

C. 20%

D. 15%

Answer: Option B

Solution (By JKSSB Mock Tests)

Reduction % = (20/120)×100 = 16.67%.

This question belongs to: Maths Percentage

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Question #1

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In a class of 40, 30% are girls. Number of boys is:

A. 32

B. 26

C. 28

D. 30

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Correct Answer: Option C

Explanation:
70% of 40 = 28 boys.

This question belongs to: Maths Percentage

Question #2

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In a bag, 60% are red balls, 30% are blue balls, and the rest are green balls. If 5% of red, 10% of blue, and 20% of green balls are defective, what percent of the total balls are defective?

A. 8%

B. 7.5%

C. 8.5%

D. 7%

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Correct Answer: Option A

Explanation:
Red=60, Blue=30, Green=10. Defective: Red 0.05×60=3, Blue 0.1×30=3, Green 0.2×10=2. Total defective=8%. So answer 8%.

This question belongs to: Maths Percentage

Question #3

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A number is 50% more than another number. If the smaller number is 60, what is 40% of the larger number?

A. 30

B. 45

C. 36

D. 40

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Correct Answer: Option C

Explanation:
Larger = 60 × 1.5 = 90, 40% of 90 = 36.

This question belongs to: Maths Percentage

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