PSLE
A group of pupils was asked to choose one burger from tuna, beef, egg and hotdog. The table represents the pupils' choices. The pupils' choices were also represented by a bar graph but the names of the burgers were not shown. What was the total number of pupils who chose egg and tuna burgers?

Burgers	Pupils
Tuna	25%
Beef	30%
Egg	10%
Hotdog	35%

Number of pupils who chose egg burgers is the least. So it is represented by the shortest bar.

Number of pupils who chose egg burgers = 40

10% of pupils = 40

1% of pupils = 40 ÷ 10 = 4

Percent of pupils who chose tuna burgers = 25%
Percent of pupils who chose beef burgers = 30%

Percent of pupils who chose tuna and beef burgers
= 25% + 30%
= 55%

Total number of pupils who chose egg and tuna burgers
= 55 x 4 
= 220

Answer(s): 220