Question

There are 14 students in RSM class. 8 of them came to RSM Olympiad, 7 of them participated in Math Kangaroo, and 4 participated in both. How many students were not part of these exciting events?

Answer 1

3 students

Explanation:

now for RSM Olympiad are 8

math kangaroo are 7

studs that did both are 4

Total number of studs that participated are

(8-4) + 4 + (7-4)

4+ 4 + 3 = 11

those who didn't participate are

14-11 = 13