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3241004551 [841]

2 years ago

15

A box contains five keys, only one of which will open a lock. keys are randomly selected and tried, one at a time, until the loc

k is opened (keys that do not work are discarded before another is tried). let y be the number of the trial on which the lock is opened

1 answer:

alukav5142 [94]2 years ago

4 0

Each key is 1/5 the way for the door to be open

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