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Tiana can clear a football field of debris in 3 hours. Jacob can clear the same field in 2 hours. If they decide to clear the field together, how long will it take them?

Respuesta :

1/3 + 1/2 = 1/x    where x = time it takes working together

5/6 = 1 /x
5x = 6
x = 6/5 

Its take 1 1/5 hours =  1 hour 12 minutes working together

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