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 files in Box G.
- What fraction of stationery in Box H is files?
- The number of files in Box G is 210. Find the number of files in Box H.
(a)
90°360° = 25% of stationery in Box G
Percentage of markers in Box G = 25%
Percentage of files in Box G
= 100% - 40% - 25%
= 35%
(b)
Percentage of files in Box H
= 100% - 55% - 25%
= 20%
Fraction of stationery in Box H that is files
= 20100
=
15 (c)
35% of stationery in Box G = 210
1% of stationery in Box G = 210 ÷ 35 = 6
100% of the stationery in Box G = 100 x 6 = 600
Number of stationery in Box H
= 600 ÷ 3
= 200
100% of stationery in Box H = 200
1% of stationery in Box G = 200 ÷ 100 = 2
20% of stationery in Box G = 20 x 2 = 40
Number of files in Box H = 40
Answer(s): (a) 35%; (b)
15; (c) 40