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
Algebra ->
Rate-of-work-word-problems
-> 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
Log On
Question 288771: 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? (Round your answer to the nearest tenth.) Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! There is more info than needed. We don't need the measurements of the garden.
x/3+x/4=1
4x+3x=12
7x=12
x=12/7
They can complete the job in 12/7 hours
12/7 = 1 5/7=1hour and 43 minutes= 1.7 hours
