document.write( "Question 120361: Two men, A and B, can paint a house in 8 days. A alone can paint it in 12 days. How long will B take to paint the house by himself. \r
\n" ); document.write( "\n" ); document.write( "I am unsure on how to solve this. All I know is that there is some formula to this that involves many proportions. Please help!
\n" ); document.write( "

Algebra.Com's Answer #88259 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Two men, A and B, can paint a house in 8 days. A alone can paint it in 12 days. How long will B take to paint the house by himself.
\n" ); document.write( ":
\n" ); document.write( "Let B = time required by B to paint the house by himself
\n" ); document.write( ":
\n" ); document.write( "Let the completed job = 1
\n" ); document.write( ":
\n" ); document.write( "A simple equation:
\n" ); document.write( "\"8%2F12\" + \"8%2FB\" = 1
\n" ); document.write( ":
\n" ); document.write( "Multiply equation by 12B to get rid of the denominators
\n" ); document.write( "12B*\"8%2F12\" + 12B*\"8%2FB\" = 12B(1)
\n" ); document.write( ";
\n" ); document.write( "Cancel out the denominators and you have:
\n" ); document.write( "8B + 12(8) = 12B
\n" ); document.write( ":
\n" ); document.write( "8B + 96 = 12B
\n" ); document.write( ":
\n" ); document.write( "96 = 12B - 8B
\n" ); document.write( ":
\n" ); document.write( "96 = 4B
\n" ); document.write( ":
\n" ); document.write( "B = 96/4
\n" ); document.write( ":
\n" ); document.write( "B = 24 days
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check solution:
\n" ); document.write( "\"8%2F12\" + \"8%2F24\" =
\n" ); document.write( "\"2%2F3\" + \"1%2F3\" = 1; confirms our solution
\n" ); document.write( "
\n" );