Question

Sets:

In a survey of a group of people, it was found 62 liked to drink tea, 85 liked to drink coffee, 33 liked both and 36 didn't liked both the bevergers. How many people were surveyed ?​

Answer 1

62 - 33 liked tea only = 29
85 - 33 liked coffee only = 52
33 liked both = 33
36 liked neither tea or coffee = 36
Total surveyed = 29 + 52 + 33 + 36 = 150 people