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Question

Two dice are thrown at the same time. Find the probability of getting:
(i) Same number on both dice (ii) Different number on the both dice.

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Solution

(i) Two dice are thrown at the same time, now for the probability of getting some no on both dice.

A There is no more than 6 way.

i.e, A{(1,1),(2,2),(3,3),(4,4),(5,5)(6,6)}

P(A)=636=16

(i) Two dice are thrown at the some time, now for the probability of getting different no on both dice.

B There is no more than 6 way.

i.e, A{(1,1),(1,2),(1,3),(1,4),(1,5)(1,6)........,(6,2),(6,3),(6,4),(6,5)}

P(B)=6036=56

P(B)=1P(A)=116=56

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