Patrick B. answered • 09/25/20
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the combined work rates are 1/60 + 1/40 = (2+3)/120 = 5/120 = 1/24
24 minutes
Victoria H.
asked • 09/24/20word problems in algebra
It takes a boy 60 minutes to mow the lawn, but his sister can mow it in 40 minutes. How long would it take them to mow the lawn if they worked together, using two lawn mowers?
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