Q.
Three dice are rolled and told that exactly two of them are showing the same number. The probability of getting sum 16 is
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a
114
b
115
c
117
d
116
answer is B.
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Detailed Solution
P(E)=[sum16exactly 2 numbers same] = 6C1 6×C1 5×3!2!=115Sum 16={(6,6,4), (5.5,6)}=3+3=6
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