The following questions are based on the information given below

In a school of 4000 students 3000 know English, 2000 know French and 5000 know Hindi, 1500 know French and English, 300 know French and Hindi, 200 know English and Hindi and 50 know all the three languages.

How many know atleast one language?

The following questions are based on the information given below

In a school of 4000 students 3000 know English, 2000 know French and 5000 know Hindi, 1500 know French and English, 300 know French and Hindi, 200 know English and Hindi and 50 know all the three languages.

How many know only two languages?

The following questions are based on the information given below

In a school of 4000 students 3000 know English, 2000 know French and 5000 know Hindi, 1500 know French and English, 300 know French and Hindi, 200 know English and Hindi and 50 know all the three languages.

How many do not know any of the three languages?

Study the following information carefully and answer the questions given below it.

There are 6 persons in a family. Chitra is the sister of Rakesh. Badhri is the brother of Eniya's husband. Dilip is the father of Arun and grandfather of Rakesh. There are two fathers, three bothers and a mother in the group.

How is Rakesh related to Eniya?

Study the following information carefully and answer the questions given below it.

There are 6 persons in a family. Chitra is the sister of Rakesh. Badhri is the brother of Eniya's husband. Dilip is the father of Arun and grandfather of Rakesh. There are two fathers, three bothers and a mother in the group.

Which of the following is a group of brothers?

Study the following information carefully and answer the questions given below it.

There are 6 persons in a family. Chitra is the sister of Rakesh. Badhri is the brother of Eniya's husband. Dilip is the father of Arun and grandfather of Rakesh. There are two fathers, three bothers and a mother in the group.

How many male members are there in the family?

The mean of a distribution is 20 and the standard deviation is 4. What is the value of the coefficient variation?

Below are given statements followed by two conclusions I and II. You have to take the given statements to be true even if they seem to be at variance from commonly known facts.

Statements :

All birds are trees.

All trees are papers.

Some papers are books.

Conclusions :

I. All birds are papers.

II. Some birds are books.

Decide which of the below options logically follows the given conclusions.