To pass an exam, 40% is required. A student got 150 marks and failed by 30 marks. Maximum marks are: MCQ with Answer and Explanation

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To pass an exam, 40% is required. A student got 150 marks and failed by 30 marks. Maximum marks are:

A. 450

B. 550

C. 500

D. 400

Answer: Option A

Solution (By JKSSB Mock Tests)

Pass marks = 150 + 30 = 180. 40% of Max = 180 → Max = 180/0.4 = 450.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

20% of A = 30% of B = 1/6 of C. Ratio A:B:C:

A. 15:10:12

B. 15:10:18

C. 18:10:15

D. 10:15:18

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Correct Answer: Option B

Explanation:
Let 20%A=30%B=C/6 = k. A=5k, B=10k/3, C=6k → multiply by 3: 15:10:18.

This question belongs to: Maths Percentage

Question #2

If x% of 300 = 45, then x is:

A. 18

B. 12

C. 10

D. 15

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Correct Answer: Option D

Explanation:
300 × x/100 = 45 → 3x = 45 → x = 15.

This question belongs to: Maths Percentage

Question #3

Salary increased by 15% then decreased by 15%. Net effect:

A. 2.25% increase

B. No change

C. 2.25% decrease

D. 1.5% decrease

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Correct Answer: Option C

Explanation:
1.15 × 0.85 = 0.9775, 2.25% decrease.

This question belongs to: Maths Percentage

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