K krisolaw New member Joined Jun 5, 2005 Messages 45 Jun 5, 2005 #1 Frank can type a report in 8 hours. James takes 3 hours to type it. How long will it take the two of them typing together? Please help. Thanks.
Frank can type a report in 8 hours. James takes 3 hours to type it. How long will it take the two of them typing together? Please help. Thanks.
G Gene Senior Member Joined Oct 8, 2003 Messages 1,904 Jun 6, 2005 #2 Frank can do 1/8th in 1 hour. James can do 1/3d in one hour Together they can do 1/xth in one hour 1/8 + 1/3 = 1/x
Frank can do 1/8th in 1 hour. James can do 1/3d in one hour Together they can do 1/xth in one hour 1/8 + 1/3 = 1/x
