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Brainteaser - The Rope Bridge and the Flashlight

Four people need to cross a rickety rope bridge to get back to their camp at night. Unfortunately, they only have one flashlight and it only has enough light left for 17 minutes. The bridge is too dangerous to cross without a flashlight, and it’s only strong enough to support 2 people at any given time. Each of the campers walks at a different speed. Camper A can cross the bridge in 1 minute, camper B in 2 minutes, camper C in 5 minutes, and camper D takes 10 minutes to cross. How do the campers make it across in 17 minutes?
A 1 min; B 2 min; C 5 min; D 10 min
Quiz by scambigol
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First submittedNovember 4, 2014
Last updatedNovember 4, 2014
Times taken73
3:00
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Type the letter(s) of the campers crossing the bridge
 
 
Hint
Answer
Going
AB
Coming back
A
Going
CD
Coming back
B
Going
AB
+1
level 72
Nov 4, 2014
Fortunately there was a full moon, so when the campers spent 3:00 working this out first they all managed to get back safely.
+1
level 57
Apr 26, 2015
lol!
+1
level 21
Jun 21, 2017
XD