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30. HOUSEHOLD CHORES You can wash one window in 15 minutes and your sister can wash one window in 20 minutes. How many minutes will it take to wash 12 windows if you work togeth…

30. HOUSEHOLD CHORES You can wash one window in 15 minutes and your sister can wash one window in 20 minutes. How many minutes will it take to wash 12 windows if you work togeth…
asked 136k views
4 votes
30. HOUSEHOLD CHORES You can wash one window in 15 minutes and your

sister can wash one window in 20 minutes. How many minutes will it take
to wash 12 windows if you work together?

asked
User Vrutin Rathod
by
7.5k points

1 Answer

5 votes

An hour and forty three minutes (if I did it right)

answered
User Okezie
by
7.9k points
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