Two Dice Gamble

A and B play a game of dice with the following rules.

  1. Two six sided dice with numbers 1 to 6 on their faces would be rolled simultaneously.

  2. A Wins If the total on the two dice faces comes to 12 during the course of the game,

  3. B Wins If the total on the two dice faces comes as 7 for two consecutive rolls. Eg : 6,1 in n-th throw and 5,2 in n+1-th throw.

  4. The game is stopped once anyone wins.

Who is more likely to win the game.

The winning chance depends on the number of throws. A is more likely to win. B is more likely to win. Both have equal chances of winning.

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1 solution

Rohan Bansal
Jan 26, 2015

Sample space for A= case when 6 appears on both dice P(A)=1\36

Sample space for B:-

1222 =4 permutations

1231 =12 permutations

1411 =4 permutations

P(B)=20\36*36

Since P(A)>P(B)

So A has more chance of winning.

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