Question

In a class of 25 students, there were 13 math majors, 10 were computer science majors, and 6 were dual majors in both.

How many were in math only?

How many were not majoring in computer science?

How many were not math or computer science?

Answer 1

How many were in math only?7

How many were not majoring in computer science?9

How many were not math or computer science?2

Explanation:

Total students 25

-math major 13

-Science major 10

_______________

2 not majoring in math or CS majors

math major 13 -6 dual majors = 7 major in math only

math major 7+ not math or CS 2 = 9 not majoring in CS