document.write( "Question 750604: 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? \n" ); document.write( "
Algebra.Com's Answer #456727 by tommyt3rd(5050)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "so that t=20/9hr = 2 2/9 hr\r
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