A can complete a work in 14 days and B in 23 days. If they work together, the work will be completed in: MCQ with Answer and Explanation

Question

Share Report Error

A can complete a work in 14 days and B in 23 days. If they work together, the work will be completed in:

A. 8.7

B. 18.7

C. 23.7

D. 13.7

Answer: Option A

Solution (By JKSSB Mock Tests)

Combined rate = 1/14 + 1/23. Required time = 8.7 days.

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 can complete a work in 23 days and B can complete the same work in 33 days. If they work together, in how many days will the work be completed?

A. 17.55

B. 19.55

C. 13.55

D. 15.55

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Combined rate = 1/23 + 1/33. Time = 1 ÷ combined rate = 13.55 days.

This question belongs to: Maths Time and Work

Question #2

Share Report

If 6 men and 8 boys can do a piece of work in 10 days, then 3 men and 4 boys will do the same work in:

A. 15 days

B. 20 days

C. 5 days

D. 12 days

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
The number of workers (3 men and 4 boys) is exactly half of the original group (6 men and 8 boys). Since efficiency becomes half, the time taken will double. Total time = 10 * 2 = 20 days.

This question belongs to: Maths Time and Work

Question #3

Share Report

15 men can complete a work in 13 days. If 19 men work at the same rate, in how many days will the work be completed?

A. 12.26

B. 14.26

C. 10.26

D. 16.26

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Total work = 15 × 13 = 195 man-days. Required days = 195/19 = 10.26 days.

This question belongs to: Maths Time and Work

Explore All Time and Work MCQs