# Question: A combination lock has 50 numbers on it To open

A combination lock has 50 numbers on it. To open it, you turn counterclockwise to a number, then rotate clockwise to a second number, and then counterclockwise to the third number. Repetitions are allowed.

(a) How many different lock combinations are there?

(b) What is the probability of guessing a lock combination on the ﬁrst try?

(a) How many different lock combinations are there?

(b) What is the probability of guessing a lock combination on the ﬁrst try?

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