Question

In ranking ten candidates $A_1,A_2,\cdots A_{10}$, what is the probability that $A_1$ is always above $A_{10}$? (none of them can have the same rank)

• A. $\frac{1}{4}$
• B. $\frac{1}{2}$
• C. $\frac{1}{3}$
• D. None of these

Answer 1

The correct option is B $\frac{1}{2}$

Option B is the correct answer. Check the video for the approach.