Home » » In a class of 120 students, 18 of them scored an A grade in mathematics. If the ...

# In a class of 120 students, 18 of them scored an A grade in mathematics. If the ...

### Question

In a class of 120 students, 18 of them scored an A grade in mathematics. If the section representing the A grade students on a pie chart has angle Zo at the centre of the circle, what is Z?

A) 15

B) 27

C) 50

D) 52

E) 54

### Explanation:

Total students = 120
Zo = $$\frac{18}{120}$$ x $$\frac{360}{1}$$
= 54o

## Dicussion (1)

• Total students = 120
Zo = $$\frac{18}{120}$$ x $$\frac{360}{1}$$