Question

3. A red number cube and a blue number cube are rolled. If all numbers are equally likely, what is the probability of the event THAT The red cube is greater?

Answer 1

red. blue

1 ----

2 1

3 1,2

4 1,2,3

5 1,2,3,4

6 1,2,3,4,5

So there are 15 possibilities.

Probability of event=15/36=5/12

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