Question

A small class has 10 students, 4 of whom are girls and 6 of whom are boys. The teacher is going to choose two of the students at random. What is the probability that the teacher will choose two boys? Write your answer as a fraction in the simplest form.

Answer 1

1/3

Explanation:

Dividing the amount of boys (6) by the amount of students (10), and then reiterating that, subtracting 1 from both, you get:
(6/10) x (5/9) which equals a third.