Ninety coffee drinkers were asked whether they used cream or sugar in their
coffee. The summary of the survey was as follows:
59 use sugar
42 use cream
19 use both
a. How many used sugar but not cream?
b. How many used cream but not sugar?
c. How many used cream or sugar?
(Please use Venn diagram thank you)
Answers & Comments
Answer:
a.40
b.23
c59-sugar
42-cream
Step-by-step explanation:
a59
b.42
c.19
19
_
/. .\
42. 59