Question 13 Marks
Answer
View full question & answer→(a) Angles: O = $45\% \times 3.6 = 162^\circ$, A = $20\% \times 3.6 = 72^\circ$, B = $30\% \times 3.6 = 108^\circ$, AB = $5\% \times 3.6 = 18^\circ$.
(b) If 30% = 600, Total = $\frac{600}{30} \times 100 = 2000$ persons.
(b) If 30% = 600, Total = $\frac{600}{30} \times 100 = 2000$ persons.