PSLEThe pie charts show the number of each type of stationery in 2 stationery boxes, G and H. The total number of stationery in Box G is thrice the total number of stationery in Box H.
- Find the percentage of markers in Box G.
- What fraction of stationery in Box H is markers?
- The number of markers in Box G is 120. Find the number of markers in Box H.
(a)
90°360° = 25% of stationery in Box G
Percentage of staplers in Box G = 25%
Percentage of markers in Box G
= 100% - 35% - 25%
= 40%
(b)
Percentage of markers in Box H
= 100% - 55% - 30%
= 15%
Fraction of stationery in Box H that is markers
= 15100
=
320 (c)
40% of stationery in Box G = 120
1% of stationery in Box G = 120 ÷ 40 = 3
100% of the stationery in Box G = 100 x 3 = 300
Number of stationery in Box H
= 300 ÷ 3
= 100
100% of stationery in Box H = 100
1% of stationery in Box G = 100 ÷ 100 = 1
15% of stationery in Box G = 15 x 1 = 15
Number of markers in Box H = 15
Answer(s): (a) 40%; (b)
320; (c) 15