I used the Bayes Formula and with that I keep getting 0.3333 for the first questions. I followed the formula but its says my answer is wrong.

Hi there I need help on the below question. I used the Bayes Formula and with that I keep getting 0.3333 for the first questions. I followed the formula but its says my answer is wrong. Please help. Thank you!

A​ new, simple test has been developed to detect a particular type of cancer. The test must be evaluated before it is put into use. A medical researcher selects a random sample of