document.write( "Question 287626: if lisa types a paper in 5 hours\r
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document.write( "and lisa and bill together type the same paper in 2 hours\r
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document.write( "how long would it take for bill to type the same paper alone? \n" );
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Algebra.Com's Answer #208373 by Grinnell(63)![]() ![]() ![]() You can put this solution on YOUR website! What can be done in 1 hour? \n" ); document.write( "Lisa can type 1/5 of the paper in hour. \n" ); document.write( "Bill Can type 1/B of the paper in 1 hour.\r \n" ); document.write( "\n" ); document.write( "TOGETHER they can type 1/2 the paper in one hour. Soooo\r \n" ); document.write( "\n" ); document.write( "1/5+1/B=1/2 (do the math!) \n" ); document.write( "B=10/3 BUT let's check this!\r \n" ); document.write( "\n" ); document.write( "1/5+ 1/10/3=3/10 1/5+3/10=2/10+3/10=5/10=1/2\r \n" ); document.write( "\n" ); document.write( "The answer is three hours and 20 minutes \n" ); document.write( " |