In the following diagram, the circle stands for 'teachers', the rectangle stands for 'part-time workers', and the triangle stands for 'online educators'. The numbers given in the different segments represent the number of persons of that category. How many teachers are online educators and also part-time workers?
19
The least possible Venn diagram for the given representation of segments is as shown below :
∴ Here, '19' teachers are online educators and also part-time workers.
Hence, the correct answer is "19".
Important Questions from Venn Diagram Problems
In a class of 75 students, 40 students participate in Cricket, 28 students participate in Hockey, and 12 students participate in both Cricket and Hockey, whereas 19 students do not participate in any of the two sports. How many students participate only in Hockey?
How many students like french?
A. 30
B. 35
C. 40
D. 45
What is the ratio of students who like Spanish to those who like German?
A. 2/3
B. 1/2
C. 3/2
D. 4/9
How many students like only one language?
A. 65
B. 70
C. 75
D. 85
L and A are classmates as well as good friends. In a class of 30 students, L has 10 unique friends and 5 friends who are common to A. A has a total of 17 friends in the class. How many students are friends with neither L nor A?
