GCSE Maths Practice: pie-charts

\( \begin{array}{l} \text{A full pie chart represents 120 people.} \\ \text{A sector is 120$^\circ$.} \\ \text{How many people does this sector represent?} \end{array} \)

Choose one option:

\( 50 \) \( 40 \) \( 30 \)