What is the number of selections of 10 consecutive things out of 12 things in a circle taken in the…
What is the number of selections of 10 consecutive things out of 12 things in a circle taken in the clockwise direction?
3
11
12
66
Solution
When choosing consecutive items from a circle, each selection of 10 consecutive items is determined by its starting position. There are 12 possible starting positions in a circle of 12, so the number of selections is 12.