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Three dice are thrown simultaneously. Find the probability that: (i)all of them show the same face. (ii)all show distinct faces. (iii)two of them show the same face.

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`6*6*6=216`
`n(A)=6`
`P(A)=6/(6*6*6)=1/36`
`P(B)=(n(B))/(n(5))=(6*5*4)/6^3`
`.^3C_2*6*5`
`6*5*3`.

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