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