# math

posted by
**edsel**
.

20 students are in a classroom. if students leave randomly, the probability that the first student to leave the classroom is a girl is 3/5. How many girls are there?

posted by
**edsel**
.

20 students are in a classroom. if students leave randomly, the probability that the first student to leave the classroom is a girl is 3/5. How many girls are there?