Question

In a survey, there were 109 students who like to play Candy Crush, 19 like Flappy Bird, and 127 like DOTA. 19 like to play Candy Crush and DOTA, 17 like Flappy Bird and DOTA, 30 like Candy Crush and Flappy Bird. If there are 15 students who like to play all:
1. How many like Candy Crush only?
2. How many like DOTA only?
3. How many like Flappy Bird only?
4. How many students were surveyed?

Answer 1

1. 168 members like to play candy crush.

2.163 members like to play DOTA.

3. 66 members like to play Flappy Bird

4. 265 members like to play all