# The accompanying venn diagram shows three events A,B and C,and also the probabilities of the various intersections (for instance $P(A \cap B)=0.07$).Determine P(A)

$\begin{array}{1 1}(A)\;0.20\\(B)\;0.10\\(C)\;0.30\\(D)\;0.50\end{array}$

According to the venn diagram
$P(A)=0.13+0.07$
$\Rightarrow 0.20$
Hence (A) is the correct answer.