Common Information
In a drawing competition, students were asked to draw geometric figures of their choice. The following Venn diagram represents the number of students and their choices of geometric figures. Each geometric figure on the Venn diagram represents the set of students who chose to draw that particular geometric figure.
Q16. 
Common Information Question: 3/4 How many students drew polygons with sum of internal angles less than $200^\circ$ 
A.  30 

B.  40 

C.  50 

D.  60 
Q18. 
70 percent of the employees in a multinational corporation have VCD players, 75 percent have microwave ovens, 80 percent have ACs and 85 percent have washing machines. At least what percentage of employees has all four gadgets? 
A.  15% 

B.  5% 

C.  10% 

D.  Cannot be determined 
Common Information
In the diagram below, the circle stands for ‘educated’, square stands for ‘hard working’, triangle for ‘urban people’ and rectangle for ‘honest’. The different regions of the diagram are numbered from 1 to 12. Study the diagram carefully and answer the questions:
Q19. 
Common Information Question: 1/2 Uneducated urban hardworking and honest people are indicated by: 
A.  3 

B.  4 

C.  9 

D.  11 