document.write( "Question 1009048: Mr. Rey asked Ben to finish a house repair job in 3 days. Ben knows that he can do it in 5 days. If Ben hires a helper, how fast can the helper work to finish the house repair in 3 days? \n" ); document.write( "
Algebra.Com's Answer #624669 by fractalier(6550)\"\" \"About 
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The set up looks like this:
\n" ); document.write( "3/5 + 3/B = 1
\n" ); document.write( "where B is the time it takes the helper by himself...
\n" ); document.write( "Solve this a couple of ways...let's multiply by 5B and get
\n" ); document.write( "3B + 15 = 5B
\n" ); document.write( "15 = 2B
\n" ); document.write( "B = 7.5 days
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