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Question: In the following diagram, the triangle \[\vartriangle \] represents the school teachers; the square ...

In the following diagram, the triangle \vartriangle represents the school teachers; the square \square represents the married persons and the circle \bigcirc represents the person living in joint families. Which region represents married people living in joint families but not working as school teachers?

Explanation

Solution

We use the given representation of each of the figures and shade the area stepwise for each of the required fields.

Complete step by step solution:
We are given that there are three figures, triangle, square and a circle.
Triangle: It represents the school teachers
Square: It represents the married persons
Circle: It represents persons living in joint families……………...… (1)
We have to find the area that represents married people living in joint families but not working as school teachers.
We shade the area step by step.
Step 1: Married person
Since the area has married persons, from the data given we can say the area is part of the square.

So the shaded region represents the married person.
Step 2: Joint family
Now the person in the required area is married and lives in a joint family. From the data in equation (1) the joint family is represented by a circle.
So we shade the area that is the intersection of square and circle.

Step 3: Not a school teacher
Now the person in the required area is married, lives in a joint family and does not work as a school teacher. From the data in equation (1) the school teacher is represented by a triangle.
So we shade the area that is the intersection of square and circle but exclude the triangle.

So the final shaded area is D.

\therefore Area representing married people living in a joint family but not a teacher is D.

Note: Students are likely to make mistakes in writing the answer as B as they tend to think only the “F’ part represents working as a school teacher. Keep in mind that F represents only working as a school teacher but the whole triangle represents working as a school teacher, so we exclude the whole triangle in step 3.