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Question
The probability of success of three students X,Y and Z in the one examination are $$\frac{{1}}{{5}}$$, $$\frac{{1}}{{4}}$$ and $$\frac{{1}}{{3}}$$ respectively. Find the probability of success of at least two.
Options:
A .  $$\frac{{1}}{{6}}$$
B .  $$\frac{{2}}{{5}}$$
C .  $$\frac{{3}}{{4}}$$
D .  $$\frac{{3}}{{5}}$$
Answer: Option A

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