document.write( "Question 1115560: A painter can paint a building in 15 days and a co worker can do the same job in 10 days. If the first painter starts and 3 days later the co worker Joins in to help finish the job, how many does it take to paint the building? \n" ); document.write( "
Algebra.Com's Answer #730394 by josgarithmetic(39620)![]() ![]() ![]() You can put this solution on YOUR website! Rate of a painter, \n" ); document.write( "Rate of co-worker, \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Painting the building is 1 job.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "-\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If counting nearest whole days then 5 days; total of 8 days. \n" ); document.write( "If counting fractions of any day, then |