SOLUTION: If 8 girls sweep a hall in 20 minutes. How long will it take 5 girls working at the same rate to sweep the same hall?
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Question 1008974: If 8 girls sweep a hall in 20 minutes. How long will it take 5 girls working at the same rate to sweep the same hall? Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! .
8 girls x 20 minutes/hall=160 girl-minutes/hall
(160 girl minutes/hall)/5 girls=32 minutes/hall
ANSWER: It would take 5 girls 32 minutes to sweep the hall.
