51.7k views
5 votes
Of the 105 students at Mauna Loa High School, 25 students take the bus to school, 21 are in an after-school tutorial, and 9 do both. How many students are neither in the tutorial nor ride the bus?

1 Answer

2 votes
First find the number of students that either take the bus or are in tutorial:

25+21=46.

BUT, this double counts the students that do both, so we need subtract our double count:

46-9=37

37 students are in either group, therefore:

100-37=63 students are in neither.
User Rochel
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories