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Alli can mop Strong Hall in 10 hours. Working together, Alli and Zach mop Strong Hall in 4 hours. How long would it take Zach to do this job alone?
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Alli can mop Strong Hall in 10 hours. Working together, Alli and Zach mop Strong Hall in 4 hours. How long would it take Zach to do this job alone?

User Tdjfdjdj
by
7.0k points

1 Answer

4 votes

Answer:

8 hour

Explanation:

User Marian Zagoruiko
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7.7k points
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