A student scored 300 marks out of a total of 400. What is their percentage? MCQ with Answer and Explanation

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A student scored 300 marks out of a total of 400. What is their percentage?

A. 60%

B. 80%

C. 75%

D. 70%

Answer: Option C

Solution (By JKSSB Mock Tests)

Percentage = (300 / 400) * 100% = 75%.

This question belongs to: Maths Percentage

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Question #1

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The present ages of A and B are in the ratio 6:7. After 8 years, the ratio of their ages will be 8:9. Find the sum of their present ages.

A. 52 years

B. 56 years

C. 48 years

D. 60 years

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Correct Answer: Option A

Explanation:
Ages 6x,7x. (6x+8)/(7x+8)=8/9 → 54x+72=56x+64 → 2x=8 → x=4. Sum=6x+7x=13x=52.

This question belongs to: Maths Percentage

Question #2

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A's income 20% less than B, B's 25% less than C. C's income is what % more than A's?

A. 62.5%

B. 66.67%

C. 60%

D. 70%

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Correct Answer: Option B

Explanation:
A=0.8B, B=0.75C → A=0.6C → C = A/0.6, more 66.67%.

This question belongs to: Maths Percentage

Question #3

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What is 150% of 40?

A. 50

B. 60

C. 40

D. 70

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Correct Answer: Option B

Explanation:
150% of 40 = (150 / 100) * 40 = 1.5 * 40 = 60.

This question belongs to: Maths Percentage

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