SOLUTION: 20 men can do a piece of work in 24 days. After working for 6 days, additional number of men were added to finish the work in 21 days from the beginning. Find the number of additio

Algebra ->  Rate-of-work-word-problems -> SOLUTION: 20 men can do a piece of work in 24 days. After working for 6 days, additional number of men were added to finish the work in 21 days from the beginning. Find the number of additio      Log On


   

Question 854647: 20 men can do a piece of work in 24 days. After working for 6 days, additional number of men were added to finish the work in 21 days from the beginning. Find the number of additional men.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
20*24=480 man days
20*6=120
480-120=360 more to go
21-6=15 more days
360/15=24 men
24-20=4 additional men were added