Sitting & Jumping

Written on 1:08 am by Vja Students

A fly sitting on one of the hours around the rim of a 12 hr clock took it into its primitive head ( i.e. decided ) to jump forward the same number of hours as the number of the hour it was first sitting on. It continued in this way with each jump moving the same number of hours until it was back where it had started. What are the chances that it visited all the hours before getting back to where it started ?

Ans: There are 3 chances out of 12

4,8,4

8,4

12

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