Question 1082956: An ice cream palour wanted to know what flavour is most.A survey of 100 customers revealed that 56 customers liked vanilla,55 liked chocolate and 59 liked strawberry,43 liked vanilla and chocolate, 41 liked vanilla and strawberry, 40 liked strawberry and chocolate, 30 liked all the three of the flavours.How many customers did not like vanilla?
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! V============S============C
30==========30============30 all liked
13===========0=============13 V and C
11===========11=============0 V and S
0============10============10 S and C
That leaves at the end
2=============8============2 individual likes
8 liked S alone and 2 liked C alone, 10 liked S and C; all the rest liked V in some combination, so the answer is 20 did not like V.
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