PSLE A group of girls were asked to choose their favourite sport from rugby, aerobics and gymnastics. The pie chart represents the girls' choices. Three-tenths of the group chose gymnastics.
- What percentage of the group chose rugby?
- The girls' choices were also represented by a bar graph. Part of the graph is not shown. How many girls chose aerobics?
(a)
Percent of the group that chose gymnasticsl
= Three-tenths of the pie chart
=
310 x 100%
= 30%
Percent of the group that chose aerobics = 15%
Percent of the group that chose rugby
= 100% - 30% - 15%
= 55%
(b)
30% of the group = 18
1% of the group =
1830 Percent of the group that chose aerobics
= 15% of the group
= 15 x
1830 = 9
Answer(s): (a) 55%; (b) 9