Question

$5$ persons $a,b,c,d,e$ are contesting in an election.Three persons are to be selected. If one of them d has been selected uncontested, the probability that c would be selected is

• A. $\frac{1}{4}$
• B. $\frac{1}{2}$
• C. $\frac{1}{3}$
• D. $\frac{1}{5}$

Answer 1

Answer: (B)

$\frac{1}{2}$

Remaining $=4=a,b,c,e$
No of contestants need to be selected $=2$
and c should be one of the two
$\Rightarrow P\left(c\right)=2/4$