Q.

Three faces of a fair die are yellow, two faces red and one face is blue. The die is tossed 3 times. The probability that the colours yellow, red, blue appear is (need not in order)

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a

136

b

16

c

56

d

12

answer is B.

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Detailed Solution

P(E)=3!.C1   3×C1   2×C1   16×6×6=16
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Three faces of a fair die are yellow, two faces red and one face is blue. The die is tossed 3 times. The probability that the colours yellow, red, blue appear is (need not in order)