PSLE
The pie charts show the number of each type of stationery in 2 stationery boxes, F and G. The total number of stationery in Box F is twice the total number of stationery in Box G.

1. Find the percentage of highlighters in Box F.
2. What fraction of stationery in Box G is highlighters?
3. The number of highlighters in Box F is 360. Find the number of highlighters in Box G.

(a)
^90°_360° = 25% of stationery in Box F

Percentage of correction tapes in Box F = 25%

Percentage of highlighters in Box F
= 100% - 30% - 25%
= 45%

(b)
Percentage of highlighters in Box G
= 100% - 60% - 20%
= 20%

Fraction of stationery in Box G that is highlighters
= ¹₅

(c)
45% of stationery in Box F = 360
1% of stationery in Box F = 360 ÷ 45 = 8 
100% of the stationery in Box F = 100 x 8 = 800

Number of stationery in Box G
= 800 ÷ 2
= 400

100% of stationery in Box G = 400
1% of stationery in Box F = 400 ÷ 100 = 4
20% of stationery in Box F = 20 x 4 = 80  

Number of highlighters in Box G = 80

Answer(s): (a) 45%; (b) ¹₅; (c) 80