Q.

Three dice rolled simultaneously. The probability that the sum of the numbers on them is 6 is

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a

136

b

5108

c

2651

d

1334

answer is B.

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Detailed Solution

n(S)=6×6×6=216 n(E)=(6−1)(6−2)2=10        (∵n(E)=(r−1)(r−2)2) P(E)=10216=5108
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