A) \[\frac{3}{10}\]
B) \[\frac{1}{10}\]
C) \[\frac{3}{20}\]
D) \[\frac{1}{5}\]
Correct Answer: B
Solution :
Only two equilateral tringles are possible \[{{A}_{1}}{{A}_{3}}{{A}_{5}}\]and\[{{A}_{2}}{{A}_{5}}{{A}_{6}}\] \[\frac{2}{{{6}_{{{C}_{3}}}}}=\frac{2}{20}=\frac{1}{10}\]You need to login to perform this action.
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