In an exam, maximum marks 800, passing 45%. Pass marks are: MCQ with Answer and Explanation

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In an exam, maximum marks 800, passing 45%. Pass marks are:

A. 320

B. 380

C. 360

D. 340

Answer: Option C

Solution (By JKExamLibrary)

45% of 800 = 360.

This question belongs to: Maths Percentage

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Question #1

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The price of an article is reduced by 20% and then increased by 30%. Find the net change in the price.

A. 4% decrease

B. 10% increase

C. 4% increase

D. No change

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Correct Answer: Option C

Explanation:
0.8 × 1.3 = 1.04, 4% increase.

This question belongs to: Maths Percentage

Question #2

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A number is increased by x% and then decreased by x%. The net decrease is 4%. Find x.

A. 10

B. 20

C. 15

D. 18

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Correct Answer: Option B

Explanation:
(1 + x/100)(1 - x/100) = 1 - (x²/10000) = 0.96 → x² = 400 → x = 20.

This question belongs to: Maths Percentage

Question #3

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25% reduction in sugar price lets a person buy 8 kg more for Rs. 200. Reduced price per kg:

A. Rs. 6.25

B. Rs. 6

C. Rs. 5.5

D. Rs. 5

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Correct Answer: Option A

Explanation:
Original price x, consumption y, xy=200. New 0.75x(y+8)=200 → 150 + 6x = 200 → 6x=50 → x=25/3≈8.33, reduced price 0.75*x = 6.25. So Rs. 6.25.

This question belongs to: Maths Percentage

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