February 19, 2017

Homework Help: math

Posted by Zac on Wednesday, January 26, 2011 at 8:52am.

If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

This the ans 2 hours and 24 minutes but how did they work it out?

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