Question

Problem Out of 100 freshmen in a university, 60 are taking English, 50 are taking History, 30 are taking Mathematics, 30 are taking both History and English, 16 are taking both English and Mathematics, 10 are taking both History and Mathematics and 6 are taking all three courses. How many of the freshmen enrolled in either English, History or Mathematics?​

Answer 1

100

Explanation:

The entire total number of freshman are taking English, History or Mathematics. Since it says "or" and lists all subjects discussed, they all are enrolled in either English, History or Mathematics.