Logical Venn Diagram Questions

Identify the diagram that best represents the relationship among the given classes.

Brass, Bronze, Alloy

Identify the diagram that best represents the relationship among the given classes.
Singer, Musician, Businessman

Identify the diagram that best represents the relationship among the given classes.
Animal, Leopard, Lion

Which of the following diagrams indicates the best relation between Detectives, Spies and Men with Beards?

Which of the following Venn diagrams correctly represents the following classes.

Men, Fathers, Doctors

Identify the diagram that best represents the relationship among the given classes.
Pet animals, Dog, Cat

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?

Consider the following information and answer the questions based on it.

Out of the 75 birders, 15 wanted to see only sunbird, 10 wanted to see only flycatcher, 12 wanted to see both sunbird and nuthatch, 15 wanted to see only bee-eater, 13 wanted to see both sunbird and bee-eater, 5 wanted to see both flycatcher and nuthatch and the remaining wanted to see only nuthatch.

The ratio of birders who like nuthatch to those who like bee-eaters is