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Mathematics 11 Online
OpenStudy (anonymous):

A tank can be filled by a large intake pipe in 3 hours or by a small intake pipe in 4 hours. If both intake pipes are opened, how long will it take to fill the tank?

OpenStudy (anonymous):

1/(1/3+1/4)

OpenStudy (anonymous):

Simplify it

OpenStudy (anonymous):

so, it would be 7/12?

OpenStudy (anonymous):

12/7

OpenStudy (anonymous):

1 5/7 hours?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

thank you

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