PSLEThe pie charts show the number of each type of stationery in 2 stationery boxes, L and M. The total number of stationery in Box L is twice the total number of stationery in Box M.
- Find the percentage of highlighters in Box L.
- What fraction of stationery in Box M is highlighters?
- The number of highlighters in Box L is 80. Find the number of highlighters in Box M.
(a)
90°360° = 25% of stationery in Box L
Percentage of pencils in Box L = 25%
Percentage of highlighters in Box L
= 100% - 55% - 25%
= 20%
(b)
Percentage of highlighters in Box M
= 100% - 40% - 25%
= 35%
Fraction of stationery in Box M that is highlighters
= 35100
=
720 (c)
20% of stationery in Box L = 80
1% of stationery in Box L = 80 ÷ 20 = 4
100% of the stationery in Box L = 100 x 4 = 400
Number of stationery in Box M
= 400 ÷ 2
= 200
100% of stationery in Box M = 200
1% of stationery in Box L = 200 ÷ 100 = 2
35% of stationery in Box L = 35 x 2 = 70
Number of highlighters in Box M = 70
Answer(s): (a) 20%; (b)
720; (c) 70