In the following Venn diagram, the triangle stands for 'fathers', the circle stands for 'engineers', the hexagon stands for 'tax-payers', and the rectangle stands for blood donors. The given numbers represent the number of persons in that particular category.
How many taxpayers are also blood donors?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 63.
The number of persons who are taxpayers and blood donors = Numbers that are common to hexagon and rectangle = 27 + 36 = 63