Fill in the blanks : $P(A)=0.5,P(B)=0.35,P(A\cup B)=0.7,P(A\cap B)=$_________

Question

$\begin{array}{1 1}(A)\;0.25\\(B)\;0.15\\(C)\;0.35\\(D)\;\text{None of these}\end{array}$