SOLUTION: Jon can mow the lawn in 6 hours. Kim can mow the lawn in 5 hours. How long will it take them to mow the lawn if the work together?
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Question 344481: Jon can mow the lawn in 6 hours. Kim can mow the lawn in 5 hours. How long will it take them to mow the lawn if the work together? Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! Jon can mow the lawn in 6 hours. Kim can mow the lawn in 5 hours. How long will it take them to mow the lawn if the work together?
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Let x = time (hours) it takes for both
then
x(1/6 + 1/5) = 1
multiplying both sides by 30:
x(5 + 6) = 30
11x = 30
x = 30/11
x = 2.73 hours
or
x = 2 hours and 44 minutes
