Read the following data carefully and answer the following question. There are 210 persons in a party, and all of them eat three different types of fl...
Question
Read the following data carefully and answer the following question. There are 210 persons in a party, and all of them eat three different types of flavoured icecreams. 40 people eat only butterscotch, 30 people eat all three flavoured icecream,there are total 130 people who eat butterscotch and 100 people who eat vanila. 40 people eat butterscotch and vanila only, 10 people eat chocolate and vanila only.
What is the number of people who eat only Chocolate?