Answer:
The answer is 66 ways .
Step-by-step explanation:
You have to use <u>Combination</u> because it says choosing 10 out of 12 as the position is not important :
12C10 = 66 ways of arrangements
Wait what’s j I’m confused
Answer:
1 -> 4
2 -> 8
3 -> 12
4 -> 16
5 -> 20
Explanation:
4 for 1 so times each hour by 4.
There will be an 1/2 probability