wired202808 Membership Revoked Removed 10+ Year Member 5+ Year Member 15+ Year Member Joined Aug 14, 2006 Messages 2,463 Reaction score 10 Jul 19, 2011 #1 Members do not see this ad. How the hell do you solve this? lol I dont get it can anyone explain?
H herkulease Full Member 10+ Year Member Joined Jan 23, 2009 Messages 898 Reaction score 2 Jul 19, 2011 #2 this is the tunnel problem right? I have the 2010 edition but I believe the questions are not reshuffled or even corrected. the answer is wrong. the two crews combined rate is 30 feet per day. in order to dig 300 feet it would take 10 days to complete. 30ft per day X 10 days = 300 feet. after 10 days crew A would only dug 120 feet. crew B would have dug 180 feet. 120feet + 180 feet = 300 feet. they've completed digging the tunnel. Upvote 0 Downvote
this is the tunnel problem right? I have the 2010 edition but I believe the questions are not reshuffled or even corrected. the answer is wrong. the two crews combined rate is 30 feet per day. in order to dig 300 feet it would take 10 days to complete. 30ft per day X 10 days = 300 feet. after 10 days crew A would only dug 120 feet. crew B would have dug 180 feet. 120feet + 180 feet = 300 feet. they've completed digging the tunnel.
N NewBee12 Full Member 10+ Year Member Joined Jan 11, 2010 Messages 380 Reaction score 15 Jul 20, 2011 #3 The answer is 120 feet Upvote 0 Downvote
