Multiple choice

A project can be finished by a team of 4 women and 6 men by a day more than a week, while another team of 3 women and 7 men can finish the same project in 10 days. Calculate the days to be taken, if another team of only 10 men are made to complete the job.

  1. 40 days

  2. 36 days

  3. 21 days

  4. 14 days

  5. Na

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Let W and M be the work done by one woman and one man per day. From the problem, 4W + 6M = 1/8 and 3W + 7M = 1/10. Solving this system gives M = 1/400, meaning 10 men take 40 days to complete the work.