Examples of Math Problems: You and your friend have been hired to paint a room. It takes you 4 hours working alone to do the job. It takes your friend 5 hours working alone to do the job. How long would it take both of you to paint the room?

Sunday, May 19, 2013

You and your friend have been hired to paint a room. It takes you 4 hours working alone to do the job. It takes your friend 5 hours working alone to do the job. How long would it take both of you to paint the room?

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so that t=20/9hr = 2 2/9 hr

:)

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