Question : Directions: The Venn diagram below shows the number of people who attended seminars on Physics, Chemistry, Maths, and Biology. What is the number of people who attended exactly any two seminars?
Option 1: 21
Option 2: 36
Option 3: 38
Option 4: 42
Correct Answer: 36
Solution : In the figure below, the shared regions represent the number of people attending seminars on exactly 2 of the 4 subjects.
7 is the number of people attending only Biology and Physics seminars.
5 is the number of people attending only the Biology and Maths seminars.
14 is the number of people attending only Maths and Physics seminars.
10 is the number of people attending only Maths and Chemistry seminars.
The total number of people attend exactly 2 seminars = 7 + 5 + 14 + 10 = 36
So, in total 36 people attended exactly 2 seminars. Hence, the second option is correct.
Related Questions
Know More about
Staff Selection Commission Sub Inspector ...
Application | Eligibility | Selection Process | Result | Cutoff | Admit Card | Preparation Tips
Get Updates BrochureYour Staff Selection Commission Sub Inspector Exam brochure has been successfully mailed to your registered email id “”.




