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2. A special combination lock that has 60 numbers on the dial works by turning it first to the right, then to the left, and
2. A special combination lock that has 60 numbers on the dial works by turning it first to the right, then to the left, and then to the right, with 3 different selected numbers needed to open the lock. Is the selection of these 3 numbers is an example of a permutation, combination, both or neither? Why? (1 mark] 3. Using an example of your own, explain the difference between the calculations ,C; and aPa. (2 marks)
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