**VENN DIAGRAM**

Venn Diagram is diagrammaticall illustration of a group of objects related to each other. Candidate need to ascertain that whether the terms will form set / sub-sets if related or not related from different sets. The group can be combined with union or intersection.

let there are three objects A , B and C each item represent a class based on some quality. Thus these question are based on the concept of class , objects in a class share a common property and different in different property. $\\$ e.g The class of “* Human Being* ” includes only humans and not other living beings. Whereas when we say ” *Animals* ” then all animals including Human Beings is considered. $\\$ ** Living Being** will include all living beings including Birds , Insects and plants.

**Different Cases of Venn Diagram are :-**

**Super Set and Subset relations**. $\\$ e.g Fruit , Science And Sports is a Super set and Apple , Physics and Cricket is respectively there subsets. $\\$ $ \qquad \qquad $**Case of intersection (Common) Between two sets.**If two sets share some of their properties not all then some of objects belong to both sets. e.g Some of Doctor’s are Female , and every Female is not a Doctor not every Doctor is a Female.**Disjoint Sets.**When two sets do not have any quantity common between them also called as disjoint Sets. The Sets do not have any relation with each other. e.g Furniture and Car. $\\$ $\qquad\qquad$

**Example 1 :- **Select from following four diagram , a diagram the express correct relationship among the three groups i.e Book , Pen , Pencil.$\\$

**Answer :-** (c) Book , Pen , Pencil do not have anything common . Hence (c)

In the following figure rectangle , square , circle and triangle represent the regions of wheat, gram , maize and rice cultivation respectively. On the basis of the figure , Answer the following question.

**Example 2:** – Which region is cultivated by all the four commodities.$\\$ $(a)\,7\qquad\quad \quad(b)\,8\quad\qquad\quad (c)\,9\qquad\qquad\quad(d)\,2$ $\\$** Answer :-**The region cultivated by all four is where we have all groups i.e the region 7.

**Example 3:-** Which region is cultivated by wheat , maize and rice. $\\$ $(a)\,7\qquad\quad \quad(b)\,8\quad\qquad\quad (c)\,9\qquad\qquad\quad(d)\,2$ $\\$ ** Answer :-**The region cultivated by all three is where we have all groups i.e the region 7.