In the given diagram, the triangle stands for ‘Indians’, the rectangle stands for ‘Athletes’, and the square stands for ‘Olympians’. The numbers given in the different segments represent the number of persons in that category. How many Indians are either Athletes or Olympians but NOT both?

15

The triangle stands for ‘Indians’,

The rectangle stands for ‘Athletes’,

The square stands for ‘Olympians’.

The numbers given in the different segments represent the number of persons in that category. How many Indians are either Athletes or Olympians but NOT both?

Step 1 ) Look at the all figures properly but common part of Indians are either Athletes or Olympians but NOT both

Step 2) Look at  number represents the Indians are either Athletes or Olympians but NOT both

Step 3) By visual observations we conclude that 10 +3 + 2 = 15  is the number which represents Indians are either Athletes or Olympians but NOT both