How many students are there?

Question

Each student plays 1 sport.  20 students play baseball. 30% of the students play football. 45% play another sport besides football or baseball.  How many students are in the school?

Answer 1

30% + 45% = 75% don't play baseball.

This means 25% play baseball since all play 1 sport.

 

0.25s = 20

s = 20/.25 = 80 students total.