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Five People on Two Bridges (Posted on 2005-06-25) Difficulty: 2 of 5
In the puzzle Four people on a Bridge we met four people who needed to cross a bridge at night. In this puzzle, there are five people who must cross two sequential bridges at night. As in the original puzzle, there are some hindrances:

The bridges can only support two people crossing at a time.

Each person has a different speed in which they can cross: 10 minutes, 7 minutes, 5 minutes, 2 minutes, and 1 minute.

They have only two flashlights to share among them.

What is the shortest amount of time it will take for all five people to cross both bridges?

See The Solution Submitted by Erik O.    
Rating: 3.8000 (5 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
10 Minute SolutionRich2005-09-23 08:03:50
re: QuestionErik O.2005-08-08 19:33:43
re: Solution...?Gururaj2005-08-03 07:48:30
Solution this toomish2005-07-23 16:29:03
Solutioni thinkmish2005-07-23 16:28:13
so much moreTammy Roy2005-07-12 16:53:18
Solution10 minutesLacey2005-07-05 19:19:29
Re: SolutionK Sengupta2005-07-05 05:54:07
Solution..Solution..anonymous2005-07-04 17:15:44
redocoryann2005-07-01 07:08:29
bridge crossingcoryann2005-07-01 06:52:17
SolutionNo SubjectK Sengupta2005-07-01 06:42:48
QuestionQuestionAmber2005-07-01 03:17:38
Some Thoughtsonly 10 minsj4411672005-06-29 07:21:42
Some Thoughtsre(2): solution/Mathematical solution of my theory!!/Sorry yall!!Awdreye2005-06-28 07:50:51
re: solutionAwdreye2005-06-28 07:25:31
Some ThoughtssolutionAwdreye2005-06-28 07:20:57
the answer?Katie2005-06-28 02:53:12
re(4): Fastest solution yet? correct?john2005-06-27 20:58:17
re(3): Fastest solution yet? correct?Erik O.2005-06-27 20:37:59
re(4): Fastest solution yet? correct?john2005-06-27 20:28:16
re(3): Fastest solution yet? correct?john2005-06-27 20:26:09
re(3): Fastest solution yet? correct?Tristan2005-06-27 20:24:47
re(2): Fastest solution yet? correct?john2005-06-27 20:13:45
re: Fastest solution yet? correct?Hugo2005-06-27 19:45:22
re: Fastest solution yet? correct?Hugo2005-06-27 19:45:21
SolutionFastest solution yet? correct?john2005-06-27 19:12:32
re: answerDavid Grenier2005-06-26 02:10:22
Some Thoughtsmy solutionDavid Grenier2005-06-26 02:09:24
Solutionanswerj4411672005-06-26 01:15:31
QuestionSmall requestTristan2005-06-25 23:00:12
Solution1 less minuteTristan2005-06-25 22:52:53
SolutionSolution...?Cougar Draven2005-06-25 22:50:40
re: 3 lessTomM2005-06-25 21:29:30
re: answerbilliardgirlscout2005-06-25 20:11:56
Some Thoughts3 lessMathManiac2005-06-25 18:11:42
SolutionNot sure if this is the best...Ken Haley2005-06-25 17:03:47
re(2): AnswerKen Haley2005-06-25 15:48:16
Questionre: AnswerMathManiac2005-06-25 04:34:33
AnswerSachin2005-06-25 03:21:15
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