220 students were asked if they liked chocolate or vanilla ice cream. 140 said they liked chocolate and 120 said they liked vanilla. How many students liked both chocolate and vanilla?

260
100
80
40

Question

220 students were asked if they liked chocolate or vanilla ice cream. 140 said they liked chocolate and 120 said they liked vanilla. How many students liked both chocolate and vanilla?

260
100
80
40

anonymous · Answer

140 + 120 = 260
260 - 220 = 40

So i'd say 40.

anonymous · Answer

its a basic sets venn diagram question
THE answer is true 40

anonymous · Answer

I *think* its 80...It isn't a simple Venn diagram question, algebra isn't that easy going. I just forgot how you have to solve this.  :/