A) \[\frac{7}{13}\]
B) \[\frac{11}{15}\]
C) \[\frac{12}{13}\]
D) None of these
Correct Answer: C
Solution :
Required probability \[=\frac{{}^{5}{{C}_{3}}\times {}^{10}{{C}_{8}}}{{}^{15}{{C}_{11}}}+\frac{{}^{5}{{C}_{4}}\times {}^{10}{{C}_{7}}}{{}^{15}{{C}_{11}}}+\frac{{}^{5}{{C}_{5}}\times {}^{10}{{C}_{6}}}{{}^{15}{{C}_{11}}}=\frac{12}{13}\].
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