A prestigious company had called for candidates to be interviewed. Their data has been presented by the given Venn diagram. The circle represents MBA candidates from a reputed institution, the triangle represents candidates with an experience of more than 10 years, the rectangle represents industrious candidates and the square represents candidates aged between 40 and 50 years. The numbers given in the diagram represent the number of persons of that particular category. The company has called for the final interview, only those candidates who meet all the above criteria. How many people have been called for the final interview?

7

The circle represents MBA candidates from a reputed institution

The triangle represents candidates with an experience of more than 10 years

The rectangle represents industrious candidates 

The square represents candidates aged between 40 and 50 year

Step 1 ) Look at the figure of  rectangle , Triangle , circle and square

Step 2) Look at  number common in all who meet all the above criteria

Step 3) By visual observations we conclude that 7  is the number who have been called for the final interview