Fill in the blanks : $P(A)=0.35,P(A\cap B)=0.25,P(A\cup B)=0.6,P(B)$=__________

Question

$\begin{array}{1 1}(A)\;0.50\\(B)\;0.60\\(C)\;0.80\\(D)\;\text{None of these}\end{array} $