Question

In a survey of 400 students in a school, 100 were listed as drinking apple juice, 150 as drinking orange juice and 75 were listed as both drinking apple as well as orange juice. find how many students were drinking neither apple juice nor orange juice.

Answer 1

Drinking apple juice +drinking orange juice +drinking both(apple juice,orange juice)
100+150+75=425 students
425-400=25 students were drinking neither apple juice nor orange juice