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If Tom can mow a lawn in 4 hours and Bob can mow the same lawn in 3 hours how long will it take them to mow the lawn together?
Wiki User
∙ 13y ago
x/4+x/7
(4x+7x)
11/28
It takes about 2.5 hours for them to mow the grass together.
Wiki User
∙ 13y ago
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