Anonymous Anonymous

13-12-2016
Mathematics

Answered

Find the unit rate, and then use it to solve the problem.

A gardening company plants 10 trees in 2 hours. How long will it take to plant 150 trees?

A15 hours

B20 hours

C5 hours

D30 hours

Verified Answer :

MarsBCN MarsBCN

13-12-2016

rate = 10/2 = 5 trees per hour

150trees/5 trees per hour = 30 hours

the answer is D = 30 hours

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