document.write( "Question 268807: 2. 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?\r
\n" ); document.write( "\n" ); document.write( "A. 2 hours and 24 minutes
\n" ); document.write( "B. 3 hours and 12 minutes
\n" ); document.write( "C. 3 hours and 44 minutes
\n" ); document.write( "D. 4 hours and 10 minutes
\n" ); document.write( "E. 4 hours and 33 minutes\r
\n" ); document.write( "\n" ); document.write( "Please show me how to solve this problem. \n" ); document.write( "
Algebra.Com's Answer #196958 by palanisamy(496)\"\" \"About 
You can put this solution on YOUR website!
Given, Sally can paint a house in 4 hours, and John can paint the same house in 6 hour.
\n" ); document.write( "Work done by Sally in one hour = 1/4
\n" ); document.write( "Work done by Jonh in one hour = 1/6
\n" ); document.write( "Total work done by both of them in one hour = (1/4+1/6)
\n" ); document.write( " = (3+2)/12
\n" ); document.write( " = 5/12
\n" ); document.write( "Time taken to paint the house when both of them paint together = 12/5 hours
\n" ); document.write( "=2 2/5 hours
\n" ); document.write( "=2h (2/5)*60 min
\n" ); document.write( "=2h 24 m
\n" ); document.write( " \n" ); document.write( "
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