A and B work together. A alone can complete the work in 30 days and B alone in 36 days. What percentage of the total daily work is contributed by A? MCQ with Answer and Explanation

Question

A and B work together. A alone can complete the work in 30 days and B alone in 36 days. What percentage of the total daily work is contributed by A?

A. 57.05

B. 62.05

C. 54.55

D. 59.55

Answer: Option C

Solution (By JKSSB Mock Tests)

A share = (1/30) / (1/30+1/36) ×100 = 54.55%.

This question belongs to: Maths Time and Work

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Question #1

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A can complete a work in 14 days and B in 30 days. If both work together, in how many days will the work be completed?

A. 14.55

B. 12.05

C. 17.05

D. 9.55

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Correct Answer: Option D

Explanation:
Combined rate = 1/14 + 1/30. Time = 9.55 days.

This question belongs to: Maths Time and Work

Question #2

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A can complete a work in 27 days and B in 44 days. If both work together, in how many days will the work be completed?

A. 19.23

B. 21.73

C. 24.23

D. 16.73

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Correct Answer: Option D

Explanation:
Combined rate = 1/27 + 1/44. Time = 16.73 days.

This question belongs to: Maths Time and Work

Question #3

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A can complete a work in 34 days. What percentage of work will A complete in 6 days?

A. 22.65

B. 17.65

C. 27.65

D. 32.65

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Correct Answer: Option B

Explanation:
Percentage completed = (6/34) × 100 = 17.65%.

This question belongs to: Maths Time and Work

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