A) \[\frac{5}{18}\]
B) \[\frac{1}{6}\]
C) \[\frac{1}{9}\]
D) None of these
Correct Answer: A
Solution :
\[7\to \left\{ (6,\,\,1),\,(5,\,\,2),\,(4,\,\,3),\,(3,\,\,4),\,(2,\,\,5),\,(1,\,\,6) \right\}\] \[9\to \left\{ (6,\,\,3),\,(5,\,\,4),\,(4,\,\,5),\,(3,\,\,6) \right\}\] Required probability \[=\frac{6+4}{36}=\frac{5}{18}.\]
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