Question #N664
A survey of 100 people found that 60 people like apples, 40 people like oranges, and 20 people like both apples and oranges. How many people like only oranges?
A. 10
B. 20
C. 30
D. 40
Correct Answer is: A
We can use a Venn diagram to solve this problem. [asy] unitsize(0.6cm); label("Apples",(3,5)); label("Oranges",(7,5)); filldraw(Circle((4,3),1),gray(0.7)); filldraw(Circle((6,3),1),gray(0.7)); label("20",(5,3)); label("40",(7,3)); label("60",(3,3)); [/asy] Since 20 people like both apples and oranges, 60 - 20 = 40 people like only apples, and 40 - 20 = 20 people like only oranges. Therefore, the answer is 10.