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originally posted in:Devilwolf
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8/9/2014 5:45:38 AM
17
Destiny Math Teaser
A Vandal can cross a bridge in 10 minutes. A Captain can cross the same bridge in 5 minutes. A Dreg can cross the bridge in 2 minutes and it only takes the Shank 1 minute to cross the bridge. All four are on one side of the bridge and can only cross NO MORE THAN two at a time. They are crossing at night so they need a flashlight. Each time two cross someone has to go back with the flashlight. They have 17 minutes to cross the Bridge before the Guardian come to kill them. In what order do they cross?
There is one and only one way to do this.
[i]Proud member of the clan causing a sensation [url=http://www.bungie.net/en/Forum/Post/67123219/0/0]
THE GRIMGUARD[/url] .[/i]
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2 RepliesTwo choices First choice Shank has flash light Vandal and shank start crossing 1 min shank will cross the bridge and turn around and head back At 10 min vandal reaches the other side and captain crosses with shank At 11 min shank returns to the other side At 15 min captain finished crossing and dreg and shank leave At 17 min all are crossed Second choice Vandal has flash light Vandal and captain leave At 5 min captain finished crossing and dreg starts At 7 min dreg finished crossing and shank starts At 8 min shank finished crossing At 10 min vandal finished crossing 7 extra min to spare
