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How many locks needed to secure a room? Must say, quite smart!

Cecil Lee
in Caricatures: Laughter is good medicine & more...

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  • Staff


The description on one side of the steel door says: CONSUMER SWITCH ROOM.
Guess how many locks are required, here?
Maybe, just maybe; each person is given a key to a lock. And if there are only 1 set of keys each; then 4 different persons who hold a key could open the door to the switch room.
Then again, if each lock is suppose to have 2 sets keys each then a total of 8 persons with their own set of keys can open the door.
But wait, what happens if each lock has 3 sets of keys each? Then a total of 15 persons can have keys to access this room...
Hmm... must be a pretty important room...

 

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