PSLE A group of pupils were asked to choose their favourite sport from aerobics, swimming and rugby. The pie chart represents the pupils' choices. One-tenth of the group chose rugby.
- What percentage of the group chose aerobics?
- The pupils' choices were also represented by a bar graph. Part of the graph is not shown. How many pupils chose swimming?
(a)
Percent of the group that chose rugbyl
= One-tenth of the pie chart
=
110 x 100%
= 10%
Percent of the group that chose swimming = 5%
Percent of the group that chose aerobics
= 100% - 10% - 5%
= 85%
(b)
10% of the group = 6
1% of the group =
610 Percent of the group that chose swimming
= 5% of the group
= 5 x
610 = 3
Answer(s): (a) 85%; (b) 3