It takes Paul 9 hours longer than Li Ming to paint a house. Working together they can do the job in 20 hours. How long would it take Li Ming, working alone, to paint the house ?

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asked Oct 16, 2022 109k views

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It takes Paul 9 hours longer than Li Ming to paint a house. Working together they can do the job in 20 hours. How long would it take Li Ming, working alone, to paint the house ?

Mathematics
college

Desmond Gold asked

by Desmond Gold

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Li Ming can paint the whole house in 10 hours

TheEwook answered Oct 20, 2022

by TheEwook

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