In the figure given below, the three circles show the students of History, Political Science and Tourism; each number is the number of students in that region.
How many students study exactly two of the subjects?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 19
A student who studies exactly two subjects stands in a region shared by two circles and outside the third. The region shared by all three circles (17) is left out.
History and Political Science only: 6
History and Tourism only: 2
Political Science and Tourism only: 11
Total \(=6+2+11=19\)
