Whatsapp Messages / Puzzles And Riddles
Mohammad Iqbal
Four friends A, B, C, D Need to cross a bridge.
A maximum of 2 peoples can cross at a time.
It is night and they have just 1 lamp.
People that cross the bridge must carry the lamp to see the way.
A pair must walk together at the speed of slower person.
Speeds of:
A: 1 minute to cross bridge
B: 2 minutes to cross bridge
C: 7 minutes to cross bridge
D: 10 minutes to cross bridge
Now the question is... "What is the total minimum time required by all 4 friends to cross the bridge?"
A maximum of 2 peoples can cross at a time.
It is night and they have just 1 lamp.
People that cross the bridge must carry the lamp to see the way.
A pair must walk together at the speed of slower person.
Speeds of:
A: 1 minute to cross bridge
B: 2 minutes to cross bridge
C: 7 minutes to cross bridge
D: 10 minutes to cross bridge
Now the question is... "What is the total minimum time required by all 4 friends to cross the bridge?"
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Oct 27, 2014 at 04:10
Category: Puzzles-and-Riddles
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