Higher November 2017 Paper 2 Q11

EdexcelCurrent spec3 marksPie Charts

11 The pie charts give information about the ages, in years, of people living in two towns, Adley and Bridford.

Two pie charts. Adley (the larger circle) has sectors 0 – 19, 20 – 39, 40 – 59, 60 – 79 and 80+. Bridford (the smaller circle) has sectors 0 – 19, 20 – 39, 40 – 59, 60 – 79 and 80+

Diagrams accurately drawn

The ratio of the number of people living in Adley to the number of people living in Bridford is given by the ratio of the areas of the pie charts.

What proportion of the total number of people living in these two towns live in Adley and are aged 0 – 19?
Give your answer correct to 3 significant figures. (3)

Mark scheme

Answer	Mark	Notes
0.119	P1	for starting the process, eg finds area \(25\pi\) or \(16\pi\) oe, or finds angle for town A, 0 – 19 \((70^\circ)\), may be on diagram
	P1	for a complete process, eg \(\dfrac{70}{360} \times \dfrac{25\pi}{41\pi}\)
	A1	0.118 – 0.119 or 11.8% - 11.9%