Bridge brainteaser
Bridge brainteaser
(OP)
Four people arrive at a river with a narrow bridge that can hold a maximum of two people at a time.
It's nighttime and they have only one flashlight that MUST be used when crossing the bridge.
Person A can cross the bridge in one minute
Person B in two minutes
Person C in five minutes
Person D in eight minutes.
What's the fastest way they can all get to the other side of the bridge?
It's nighttime and they have only one flashlight that MUST be used when crossing the bridge.
Person A can cross the bridge in one minute
Person B in two minutes
Person C in five minutes
Person D in eight minutes.
What's the fastest way they can all get to the other side of the bridge?





RE: Bridge brainteaser
RE: Bridge brainteaser
RE: Bridge brainteaser
Spoiler:
Andrew H.
www.mototribology.com
RE: Bridge brainteaser
The total time for your solution is 17 minutes.
A and B Cross = 2 min
A returns = 1 min
A and C cross = 5 min
A returns = 1 min
A and D cross = 8 min
There is another faster way.
Spoiler:
A and B Cross = 2 min
A returns = 1 min
C and D cross = 8 min
B returns = 2 min
A and B cross = 2 min
Total Time = 15 min
RE: Bridge brainteaser
Andrew H.
www.mototribology.com
RE: Bridge brainteaser
Spoiler: