Asmall class has
10

students,
5

of whom are girls and
5

of whom are boys. the teacher is going to choose two of the students at random. what is the probability that the first student chosen will be a girl and the second will be a boy? write your answer as a fraction in simplest form.

answer

explanation

the area of a circle is calculated using the formula

or

we can use any of the above formulae to calculate the required. preferably, let us use the latter since the diameter is

we substitute the diameter into the formula to get:

this is the exact value for the area of the circle.

the correct answer is a