Mathematics, 17.07.2019 11:00 1qteg

Aman can mow his lawn in 4 hours. his son can do the job in 3 hours. if the son takes over an hour after his father, how long will it take him to finish mowing the lawn?

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Aman can mow his lawn in 4 hours. his son can do the job in 3 hours. if the son takes over an hour a...