Question

12 men or 15 women can finish a work in 10days. How many days will 7 men and 10 womentake to finish the same working together?

Answer 1

Answer:

8 days

Step-by-step explanation:

12 men work for 10 days signifies that job requires manpower of 120 days. Thus one man does 1/120th job in a day.

15 women work for 10 days signifies that job requires manpower of 150 days. Thus one woman does 1/150th job in a day.

Thus 7 men can do 1/120th of a job and 10 women can do 10/150th of a job in one day.

= 7/120+10/150

= 35/600=40/600 = 75/600 = 1/8th of the work done per day.

Hence, 7 men and 10 women will take 8 days