Question

suppose there is a CO education school having 60% boys and 40% girls as students .girl students have secured first class and second class in equal numbers, all boys secured first class.A teachers selects a student at random and verify the result.teacher observed that the students secured first class in examination. what is the probability that the student is girl?​

Answer 1

I think the answer is 30....

Answer 2

The correct answer is 0.25