Question

Suppose you roll 2 dice. What is the probability that the sum of the 2 dice is exactly 6, given that the 1st

dice is a 4?
Express your answer as a reduced fraction.
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Answer 1

1/6

Explanation:

because the 1st one must be 4

the second dice must be 2 in order to have a sum of 6

2+4=6

there's 6 possible result while rolling a dice

therefore it's 1/6