Study the given diagram carefully and answer the question that follows. The numbers in different sections indicate the number of students who like to study different subjects.
What is the difference between the number of students who like to study all three subjects and those students who like to study biology only?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 16.
Thus, the difference between the number of students who like to study all three subjects and those students who like to study biology only = 20 - 4 = 16