SOLUTION: Cindy mows a lawn in 50 minutes. It takes Sara 40 minutes to mow the same lawn. How long will it take them to mow the lawn if they work together?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Cindy mows a lawn in 50 minutes. It takes Sara 40 minutes to mow the same lawn. How long will it take them to mow the lawn if they work together?      Log On


   

Question 614252: Cindy mows a lawn in 50 minutes. It takes Sara 40 minutes to mow the same lawn. How long will it take them to mow the lawn if they work together?
Answer by angelicnwa(2) About Me  (Show Source):
You can put this solution on YOUR website!
I am not a math person, but don't you add 50 and 40 and divide by 2? Just a guess.