PSLE
The pie charts show the number of each type of stationery in 2 stationery boxes, S and T. The total number of stationery in Box S is five times the total number of stationery in Box T.

1. Find the percentage of punchers in Box S.
2. What fraction of stationery in Box T is punchers?
3. The number of punchers in Box S is 350. Find the number of punchers in Box T.

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

Percentage of folders in Box S = 25%

Percentage of punchers in Box S
= 100% - 40% - 25%
= 35%

(b)
Percentage of punchers in Box T
= 100% - 55% - 25%
= 20%

Fraction of stationery in Box T that is punchers
= ¹₅

(c)
35% of stationery in Box S = 350
1% of stationery in Box S = 350 ÷ 35 = 10 
100% of the stationery in Box S = 100 x 10 = 1000

Number of stationery in Box T
= 1000 ÷ 5
= 200

100% of stationery in Box T = 200
1% of stationery in Box S = 200 ÷ 100 = 2
20% of stationery in Box S = 20 x 2 = 40  

Number of punchers in Box T = 40

Answer(s): (a) 35%; (b) ¹₅; (c) 40