20% of the students in mr. macgregor’s class earned as on their final projects. 5% of the students who received as on their final projects also received as on their final exams. find the probability that a student chosen at random received an a on both the final exam and the final project.

It's a trick question, if you read it carefully it says 5% of the students who received As on their final projects also received As on their final exams. And the question is Find the probability that a student chosen at random received an A on both the final exam and the final project. Its the same thing, so its 5% of students

7p=14 so then you would divide by p=2