Question

If $n\left(A\right)=2,P\left(A\right)=\frac{1}{5}$, then find $n\left(S\right)$.

Answer 1

Given $n\left(A\right)=2$

Since, P (A) = $\frac{n\left(A\right)}{n\left(S\right)}=\frac{1}{5}$

$\Rightarrow \frac{2}{n\left(s\right)}=\frac{1}{5}$

Therefore, n (s) = 10