In a class of 60 students, 40 opted NCC, 30 opted NSS, 20 opted both.

Question

In a class of 60 students, 40 opted NCC, 30 opted NSS, 20 opted both. Find the probability a randomly selected student opted for neither.

Accepted Answer

$n(P\cup Q)=40+30-20=50$.

$$P(\text{neither}) = 1-\frac{50}{60}=\frac16$$

Solutions · 1