In a survey of 100 people, 60 drank tea, 50 drank coffee, and 30 drank…

Question

In a survey of 100 people, 60 drank tea, 50 drank coffee, and 30 drank both. How many drank neither?

Accepted Answer

B. $20$

Union (tea or coffee) = 60 + 50 − 30 = 80. Neither = total − union = 100 − 80 = 20.

Answer

$10$

Answer

$30$

Answer

$40$

In a survey of 100 people, 60 drank tea, 50 drank coffee, and 30 drank both. How many drank neither?