- #1
johnsmith8
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Homework Statement
Based of a survey from 500 people come up with this:
130 people prefer spinach
100 people prefer broccoli
50 people prefer carrot
10 people prefer spinach and broccoli
12 people prefer spinach and carrot
5 people prefer broccoli and carrot
15 people prefer all 3 of them
A. How many people prefer broccoli only?
B. How many people prefer none from 3 of it?
2. The attempt at a solution
A. I tried 100 - 10 - 5 - 15 = 70, although I'm not sure
B. Using above formula I found out 500 - 223 = 277
Need help please