document.write( "Question 858646: A and b can do a work in 9 and 12 days..if they work alternatly and A begins the work the in how many day they wil complete the work? \n" ); document.write( "
Algebra.Com's Answer #517361 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
What do you mean by alernatly? They take turns? \n" ); document.write( "
\n" );