SOLUTION: Joan can weed the garden in 40 min and her mother can weed it in 60 min. How long would it take them working together???

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Joan can weed the garden in 40 min and her mother can weed it in 60 min. How long would it take them working together???      Log On


   



Question 487207: Joan can weed the garden in 40 min and her mother can weed it in 60 min. How long would it take them working together???
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
1/40+1/60=1/t
3/120+2/120=1/t
5/120=1/t
5t=120
t=120/5=24 minutes working together..