In a group of persons travelling in a bus, 6 persons can speak Tamil, 15 can speak Hindi and 6 can speak Gujarati. In that group, none can speak any other language. If 2 persons in the group can speak two languages and one person can speak all the three languages, then how many persons are there in the group ? 

In the following Venn diagram which letters represents all those who play Cricket as well as Kabaddi and also all the three games?

Study the following diagram and answer questions based on it.

The diagram represents the favourite ice-cream flavours of kids in a society.

The ratio of kids who like Vanilla to those who like Chocolate is

Study the following diagram and answer questions based on it.

The diagram represents the favourite ice-cream flavours of kids in a society.

How many kids like Strawberry but not Vanilla?

Study the following diagram and answer questions based on it.

The diagram represents the favourite ice-cream flavours of kids in a society.

How many kids like both Chocolate and Vanilla but not Strawberry?

In the following figure, rectangle represents Hairstylists, circle represents Food stylists, triangle represents Playwrights and square represents Indians. Which set of letters represents Indians who are not Hairstylists?

According to the given Venn diagram, the total number of students in the class is ___.

Study the following figure and answer the questions given below.

By which number, the trained married lecturers in the college are represented?

Study the following figure and answer the questions given below.

If Ravenshaw College management requires only married trained lecturers for teaching. What is represented by the number 7?