Select the square-set best represented by the following Venn diagram.

In a class, there are 80 students who study both Computer Science and Electronics. While 100 students study Computer Science, 120 Students study Electronics, How many of them study Computer Science only? 

Find out which of the diagrams given in the alternatives correctly represent the relationship stated in the question.
 Sharks, Whales, Turtles.

Identify the diagram that best represents the relationship among the classes given below.
Females, Mothers and Sisters.

In the following figure, rectangle represents Plumbers, circle represents Athletes, Triangle represents Gamers and Square represents Cricketers. Which set of letters represents those who are Athletes as well as Cricketers?

In the following figure, square represents doctors, triangle represents artists, circle represents weight-lifters and rectangle represents Russians. Which set of letters represents Russians who are not doctors?

How many people play either Basketball or Badminton?

Choose the Venn diagram which best illustrates the relationship among the three given classes:

Fruit, Vegetable, Apple