Representing data - Pie charts

a) The most common method of travel is bus as this has the largest sector on the pie chart.

b) ¹/₄ of the students travel by car.

c) 6 students travel by car, and this is ¹/₄ of the total. Therefore, 24 people were questioned for the survey.

a) Vegetarian sausages account for ¹/₄ of the total sales, so calculate ¹/₄ of 3600.
¹/₄ × 3600 = 900. Therefore, 900 packets of vegetarian sausages were sold last month.

b)There are 360° in a complete turn.
The 'beef' sector has an angle of 150°, so the beef sector is ¹⁵⁰/₃₆₀th of the circle. ¹⁵⁰/₃₆₀x 3600 = 1500. Therefore, 1500 packets of beef sausages were sold.