mathcounts problem 72

label Mathematics
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schedule 1 Day
account_balance_wallet $5

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

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Jan 2nd, 2015
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Jan 2nd, 2015
Jun 26th, 2017
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