Study the given diagram carefully and answer the question that follows. The numbers in different sections indicate the number of persons who have applied for different posts.
What is the total number of persons who have applied for more than one post?

Correct option is A

Concept: To determine the number of persons who have applied for more than one post, calculate the sum of the numbers that are common to either any two regions or all three regions. In the diagram below, the shaded area indicates the intersection of the categories for the persons who have applied for more than one post.