Practicing Success
Read details carefully for questions in the following figure, the triangle represents teachers, the circle represents students and the rectangle represents actors. |
Which number represents who are teachers only ? |
1 4 2 7 |
7 |
As triangle represents teachers so 7 represents the number of those who are only teachers. 6 represents the number of those who are teachers and actors. 5 represents the number of those who are teachers, students and actors. |