SOLUTION: If it takes your friend 3 hours to mow the lawn and it take you 2 hours to mow the lawn how long will it take you to mow the lawn if you do it together?
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Question 907628: If it takes your friend 3 hours to mow the lawn and it take you 2 hours to mow the lawn how long will it take you to mow the lawn if you do it together? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 1/a+1/b=1/x
1/3+1/2=1/x
2/6+3/6=1/x
5/6=1/x
x=6/5
x=1.2 hours working together
check
x/a+x/b=1
x/3+x/2=1
1.2/3+1.2/2=1
0.4+0.6=1
1.0=1
ok
