PSLE A group of boys were asked to choose their favourite sport from aerobics, jogging and rugby. The pie chart represents the boys' choices. One-fifth of the group chose rugby.
- What percentage of the group chose aerobics?
- The boys' choices were also represented by a bar graph. Part of the graph is not shown. How many boys chose jogging?
(a)
Percent of the group that chose rugbyl
= One-fifth of the pie chart
=
15 x 100%
= 20%
Percent of the group that chose jogging = 15%
Percent of the group that chose aerobics
= 100% - 20% - 15%
= 65%
(b)
20% of the group = 16
1% of the group =
1620 Percent of the group that chose jogging
= 15% of the group
= 15 x
1620 = 12
Answer(s): (a) 65%; (b) 12