Work done by 8 men is completed in 10 days. The same work can be completed in 12 days when done by 10 women. How many days will it take to complete when 4 men and 4 women are employed to perform the same job?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 12.
Given:
Work done by 8 men is completed in 10 days.
The same work is completed in 12 days when done by 10 women.
Calculations:
Let the efficiency of a man and woman be M and W
According to the question;
⇒ 8M × 10 = 10W × 12
⇒ M/W = 3/2
⇒ 2M = 3W
So, (4M + 4W) = 6W + 4W = 10W
According to the question, ten women can finish the work in 12 days.
Therefore, four men and four women can complete the work in 12 days.