Help my friend out.

So there is a website, in which they generate a stat and find out that 40% of visitors are women and 60% are male. They are tracking a customer (who visited the page) who's last web page stop was dillards.com, a site where it is 3 times as likely that a women visits than a man.

what is the revised probabilty that the customer being tracked is a woman?

please explain the logic.