If n(A) = 2, P(A) = 1 5 , then n(S) = ? - Vidyadip

MCQ

If n(A) = 2, P(A) = $\frac{1}{5}$, then n(S) = ?

✓
10
B
5/2
C
2/5
D
1/3

✓

Answer

Correct option: A.

(A) 10
Probability, $P(A)=\frac{n(A)}{n(s)}$
$\begin{array}{l}
\Rightarrow \frac{1}{5}=\frac{2}{n(s)} \\
\therefore n ( S )=10
\end{array}$

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