SOLUTION: A father and son are digging a garden that is 7 feet long and 5 feet wide. The father, working alone, can dig the garden in 3 hours. The son can do the job in 4 hours. If they both

Question 368453: A father and son are digging a garden that is 7 feet long and 5 feet wide. The father, working alone, can dig the garden in 3 hours. The son can do the job in 4 hours. If they both work together, how long would the two need to complete the task?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rate*Time=Output
.
.
.
Let the output required to dig the garden equal Z.

Calculate the father's rate,

Calculate the son's rate,

Putting their rates together, calculate the time,

hours

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