Postal or Sorting Assistants Model Paper 11 for online practice

In the question given below contains three elements. These elements may or may not have some inter linkage. Each group of elements may fit into one of these diagrams at (1), (2), (3) and (4). You have to indicate the group of elements which correctlyfits in to the diagrams
Which of the following diagrams indicates the best relation between Boys, Girls and students?