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Mathematics, 04.07.2020 14:01 Daruk
Wilma can mow a lawn in 60 minutes. Rocky can mow the same lawn in 40 minutes. How long does it take for both Wilma and Rocky to mow the lawn if they are working together?
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Wilma can mow a lawn in 60 minutes. Rocky can mow the same lawn in 40 minutes. How long does it take...
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