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There are 720 dishes that need to be rinsed. Josh can rinse them in 72 minutes by himself. It will take his friend Felipe 144 minutes to rinse these dishes. How long will it tak…

There are 720 dishes that need to be rinsed. Josh can rinse them in 72 minutes by himself. It will take his friend Felipe 144 minutes to rinse these dishes. How long will it tak…
asked 197k views
22 votes
There are 720 dishes that need to be rinsed. Josh can rinse them in 72 minutes by himself. It will take his friend Felipe 144 minutes to rinse these dishes. How

long will it take them if they rinse these 720 dishes together?
minutes

asked
User Raveline
by
7.4k points

1 Answer

11 votes

Answer:

48 minutes

Explanation:


(1)/(72) + (1)/(144) =\\\\(2)/(144)+(1)/(144) =\\\\(3)/(144) \\\\

144÷3=48

answered
User Silentorb
by
9.0k points
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