Question

In the given diagram, the triangle stands for graduates, square stands for membership of professional organisations and the circle stands for membership of social organisations. The number of graduates who has membership in professional organisations only is _______

• A. $5$
• B. $7$
• C. $6$
• D. $4$

Answer 1

The correct option is B $7$

$\Rightarrow$ The triangle represents graduates.

$\Rightarrow$ Squares represents membership of professional organisation.

$\Rightarrow$ Circle represents membership of social organisation.

$\Rightarrow$ In figure, we can see some part of triangle contain only in a square.

$\Rightarrow$ Those part represent number of graduates who has membership in professional organisation only.

$\therefore$ The number of graduates who has membership in professional organisation only is $7$