Staff Cecil Lee Posted October 17, 2012 Staff Share Posted October 17, 2012 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... Link to post Share on other sites More sharing options...
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