SOLUTION: Jack usually mows his lawn in 4 hours. Marilyn can mow the same yard in 6 hours. How much time would it take for them to mow the lawn together.

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Question 363482: Jack usually mows his lawn in 4 hours. Marilyn can mow the same yard in 6 hours.
How much time would it take for them to mow the lawn together.
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
x%281%2F4+%2B+1%2F6%29+=+1,
5x%2F12+=+1,
x+=+12%2F5,
or x = 2.4 hours, the time it would take them to mow the lawn together.