mathcounts problem 72

Mathematics
Tutor: None Selected Time limit: 1 Day

Ellie can paint a room in 2 hours, and Diedre can paint the same room in 4 hours. How many minutes will it take Ellie and Diedre, working together, to paint the room?

Jan 2nd, 2015

Ellie paints 1/2 in 1 hour

Diede paints 1/4 in 1 hour

Both paint 3/4 in 1 hour

Full can be painted in 4/3 hours , 80 minutes.

Answer; 80 minutes

Jan 2nd, 2015

Are you studying on the go? Check out our FREE app and post questions on the fly!
Download on the
App Store
...
Jan 2nd, 2015
...
Jan 2nd, 2015
Dec 10th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer