A and B work together. A alone can complete the work in 24 days and B alone in 28 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 24 days and B alone in 28 days. What percentage of the total daily work is contributed by A?

A. 58.85

B. 61.35

C. 53.85

D. 56.35

Answer: Option C

Solution (By JKSSB Mock Tests)

A share = (1/24) / (1/24+1/28) ×100 = 53.85%.

This question belongs to: Maths Time and Work

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Time and Work Questions

Question #1

Share Report

A and B work together. A alone can complete the work in 30 days and B alone in 34 days. What percentage of the total daily work is contributed by A?

A. 58.12

B. 53.12

C. 55.62

D. 60.62

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
A share = (1/30) / (1/30+1/34) ×100 = 53.12%.

This question belongs to: Maths Time and Work

Question #2

Share Report

12 men can complete a work in 4 days, while 15 women can complete the same work in 4 days. 6 men start working and after 2 days, all of them stop working. How many women should be put on the job to complete the remaining work in 3 days?

A. 18

B. 25

C. 20

D. 15

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Total work = 12M * 4 = 48 man-days = 15W * 4 = 60 woman-days. So, 48M = 60W => 4M = 5W => 1M = 1.25W. Work done by 6 men in 2 days = 12 man-days. Remaining work = 48 - 12 = 36 man-days. Converting to woman-days: 36 * 1.25 = 45 woman-days. To complete 45 woman-days in 3 days, number of women required = 45 / 3 = 15 women.

This question belongs to: Maths Time and Work