Question

A survey of 100 random high school students finds that 85 students watched the Super Bowl, 25 students watched the Stanley Cup Finals, and 20 students watched both games. How many students did not watch either game

Answer 1

Students did not watch either game = 10

Explanation:

Total no. of students = 100

Students watched the Super Bowl = 85

Students watched the Stanley Cup = 25

Students watched both games = 20

Students did not watch either game = ( Total no. of students ) - ( Students watched the Super Bowl ) + ( Students watched the Stanley Cup ) - ( Students watched both games )

Students did not watch either game = 100 - (85 + 25 - 20)

Students did not watch either game = 100 - 90

Students did not watch either game = 10