A group of children were asked if they like eating cupcakes or brownies. The table shows the probabilities of the results.

Like cupcakes Do not like cupcakes Total
Like brownies 0.15 0.15 0.3
Do not like brownies 0.35 0.35 0.7
Total 0.5 0.5 1
What is the probability that a child likes brownies given that he likes cupcakes?

.70

.43

.50

.30