PSLE
A group of pupils was asked to choose one burger from beef, turkey, tuna and mutton. 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 tuna and beef burgers?

Burgers	Pupils
Beef	30%
Turkey	40%
Tuna	5%
Mutton	25%

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

Number of pupils who chose tuna burgers = 15

5% of pupils = 15

1% of pupils = 15 ÷ 5 = 3

Percent of pupils who chose beef burgers = 30%
Percent of pupils who chose turkey burgers = 40%

Percent of pupils who chose beef and turkey burgers
= 30% + 40%
= 70%

Total number of pupils who chose tuna and beef burgers
= 70 x 3 
= 210

Answer(s): 210