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Tracy can mow the lawn with a power mower in 20 minutes. Hai can mow it with a hand mower in 50 minutes. How long will it take them if they cooperate?
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1 vote
Tracy can mow the lawn with a power

mower in 20 minutes. Hai can mow it with
a hand mower in 50 minutes. How long
will it take them if they cooperate?

User Davis Molinari
by
7.8k points

1 Answer

3 votes

Answer:

14.29 minutes

Explanation:

take the sum of their time 1/20+1/50,then find the reciprocal

User Nskalis
by
7.9k points
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