math please answer

Question

Your teacher is selecting class partners by drawing names out of a bag. There are 12 girls’ names and 10 boys’ names. What is the probability that she selects a boy’s name followed by a girl’s name (without replacement)? 

must be a fraction

Answer 1

okay, so the probability of selecting a boys name is (number of boys)/ (number of students).

Then we need to find the probability of selecting a girls name given that a boys name has been selected already, which is (number of girls)/ (number of students-1).

Then we multiply the two probabilities to get our final answer.