A) \[\frac{1}{3}\]
B) \[\frac{1}{2}\]
C) \[\frac{1}{4}\]
D) None of these
Correct Answer: B
Solution :
Required probability \[=\frac{(10\,.\,15)}{{}^{25}{{C}_{2}}}=\left( \frac{2\,.\,10\,.\,15}{25\,.\,24} \right)=\frac{1}{2}.\]
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