Ratio 2:5, second part expressed as percentage of total is: MCQ with Answer and Explanation

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Ratio 2:5, second part expressed as percentage of total is:

A. 70%

B. 60%

C. 65.5%

D. 71.43%

Answer: Option D

Solution (By JKSSB Mock Tests)

Second part = 5/(2+5) × 100 ≈ 71.43%.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

What percent of 200 is 40?

A. 10%

B. 15%

C. 20%

D. 25%

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Correct Answer: Option C

Explanation:
(40/200)×100 = 20%.

This question belongs to: Maths Percentage

Question #2

A and B together can do a piece of work in 12 days. B and C together in 15 days. C and A together in 20 days. How long will A alone take to do the work?

A. 40 days

B. 20 days

C. 60 days

D. 30 days

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Correct Answer: Option D

Explanation:
2(A+B+C) = 1/12 + 1/15 + 1/20 = (5+4+3)/60 = 12/60 = 1/5 → A+B+C = 1/10. A's work = (A+B+C) - (B+C) = 1/10 - 1/15 = (3-2)/30 = 1/30. So A takes 30 days.

This question belongs to: Maths Percentage

Question #3

A student multiplied a number by 3/4 instead of 4/3. What is the percentage error?

A. 40%

B. 43.75%

C. 50%

D. 45%

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Correct Answer: Option B

Explanation:
True = 4/3x. False = 3/4x. Error = (4/3 - 3/4)x = (7/12)x. % Error = ((7/12) / (4/3)) * 100 = (21/48) * 100 = 43.75%.

This question belongs to: Maths Percentage

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