M mathhelp24 New member Joined Nov 16, 2010 Messages 1 Nov 16, 2010 #1 It takes 20 minutes to cut a log into 5 equally-sized pieces. How long will it take cut a similar log into 3 equally-sized pieces? I tried a proportion 5/20 = 3/x. I solved the proportion and got x = 12 minutes. Am I right?