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A pair of dice is thrown. Find the pr...

A pair of dice is thrown. Find the probability of getting the sum 8 or more, if 4 appears on the first die.

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Here,
`A = `Event that `4` appears on first die.
`A = {(4,1),(4,2),(4,3),(4,4),(4,5),(4,6)}`.
`:. n(A) = 6`
Let `B = `Event that sum of the dice is `8` or more.
Then, `B = {(3,6),(6,3),(2,6),(6,2),(5,3),(3,5),(4,4),(4,5),(4,6)}`
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