PSLE A group of girls were asked to choose their favourite sport from tennis, aerobics and badminton. The pie chart represents the girls' choices. Three-tenths of the group chose badminton.
- What percentage of the group chose tennis?
- 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 badmintonl
= Three-tenths of the pie chart
=
310 x 100%
= 30%
Percent of the group that chose aerobics = 20%
Percent of the group that chose tennis
= 100% - 30% - 20%
= 50%
(b)
30% of the group = 12
1% of the group =
1230 Percent of the group that chose aerobics
= 20% of the group
= 20 x
1230 = 8
Answer(s): (a) 50%; (b) 8