On your next turn in the game, you are 8 spaces away from climbing a ladder, which will allow you to pass both Alex and Jeff. What is the probability of landing on the ladder if you roll 2 number cubes?

Question

Mathematics

Phoebe Hensley

14 April, 11:48

On your next turn in the game, you are 8 spaces away from climbing a ladder, which will allow you to pass both Alex and Jeff. What is the probability of landing on the ladder if you roll 2 number cubes?

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Answers (2)

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Katelynn Berg · Answer 1

If you roll two dice, there is a total of 36 different outcomes.

Of those, these have a sum of 8:

2, 6

3, 5

4, 4

5, 3

6, 2

That is 5 outcomes of a sum of 8.

p (sum of 8) = 5/36

Rocketfuel · Answer 2

The answer is 5/36

Possible total combinations is 6 * 6 = 36 (six faces on each cube)

Possibility of rolling an 8 is 6+2, 5+3, 4+4, 3+5, and 2+6 so the total is 5

So divide possible combinations by the total number of combinations to get 5/36