tag:blogger.com,1999:blog-1147784181901427860.post3989823006336433672..comments2024-03-15T00:18:36.821-07:00Comments on The Weekly Riddle: The Lantern and the BridgeCharlie Guthriehttp://www.blogger.com/profile/15624106792764866509noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-1147784181901427860.post-1795429175332270892012-11-13T08:34:20.480-08:002012-11-13T08:34:20.480-08:00Also 17 minutes but different order:
F&M cross...Also 17 minutes but different order:<br />F&M cross: 2 min<br />M returns: 2 min<br />GF&C cross: 10 min<br />F returns: 1 min<br />F&M cross again: 2 min.Kalebhttps://www.blogger.com/profile/16704907027249452578noreply@blogger.comtag:blogger.com,1999:blog-1147784181901427860.post-18568974680277906912010-06-23T06:30:49.385-07:002010-06-23T06:30:49.385-07:00I thought of same ans. as Anthony. I didn't re...I thought of same ans. as Anthony. I didn't reply because that seemed too simple and I couldn't think of an other way. Later I glanced at Rob's solution. I thought "How clever to send 2 slowest together" but then thought that did not help because 2nd slowest would have to return. I hadn't noticed Mom has there from 1st trip to make the return almost as fast as Dad. CLEVER!Nick Guthrie (Dad)noreply@blogger.comtag:blogger.com,1999:blog-1147784181901427860.post-55256728074597417562010-06-03T13:13:43.574-07:002010-06-03T13:13:43.574-07:00Slight improvement:
F & M cross: 2 min
F ret...Slight improvement: <br /><br />F & M cross: 2 min<br />F returns: 1 min<br />C & GF cross: 10 min<br />M returns: 2 min<br />F&M cross: 2 min<br /><br />Total: 17 minutes<br /><br />Still not certain that's the best possible answer, though.Rob Stronghttps://www.blogger.com/profile/14761105849790955206noreply@blogger.comtag:blogger.com,1999:blog-1147784181901427860.post-10554226176796598282010-06-02T16:02:44.380-07:002010-06-02T16:02:44.380-07:00I'm thinking...father and grandfather cross to...I'm thinking...father and grandfather cross together, father runs back, child and father cross together, father runs back, father and mother cross together.<br />This will take 19 minutes total, but I'm not completely positive about my answer...Anthony C.noreply@blogger.com