Personal Comment:
This nearly happened. It is possible!
Lake Alma Bridge Enigma
What we know: Eric, Dan, Melissa, Sam and Jennifer went to Lake
Alma (a state park in Ohio) to take a walk around it after dark. In the
middle of the lake, there is an island and to get to it, you must walk
across an old suspension bridge. Eric, thinking people would care to cross,
uses his flashlight to cross. He calls for the rest to come but they keep
on walking. Eric decides to "accidently" fall in the mud and pretend he
gets hurt. He also "drops" his flashlight into the lake. The rest of the
group (Dan, Sam, Melissa, and Jennifer) are now forced to come to his rescue.
They all want to go over to show their support for Eric but the bridge
is too dangerous to cross in the dark without a flashlight. Anyone
who does so would surely plummet to an untimely demise. Fortunately,
they have one flashlight. But only one. To make matters worse, the bridge
is only strong enough to hold two people (or Eric) plus a flashlight
at one time. Also, the bridge is too long for them to throw the flashlight
across. Now, each person can cross at a different speed. Jennifer can cross
in 1 minute, Melissa can cross in 2 minutes, Dan can cross in 5 minutes,
and Sam can cross in 10 minutes. So, if two people travel in pairs,
they only go as fast as the slower person. Now, here's the kicker.
At midnight, the girls will fall in love with Eric (because they feel sorry
for him) unless everyone is across. They only have 17 minutes until midnight.
Enigma: How can they all make it in time?
Solution:
Melissa+Jennifer ---> 2 minutes
Sam+Dan ---> 10 minutes
Melissa <--- 2 minutes
Melissa+Jennifer ---> 2 minutes
================================
Total = 17 minutes
See who got this right
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