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

Noodle Sets	Pupils
Mutton	35%
Turkey	15%
Tuna	5%
Beef	45%

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

Number of pupils who chose tuna noodle sets = 15

5% of pupils = 15

1% of pupils = 15 ÷ 5 = 3

Percent of pupils who chose mutton noodle sets = 35%
Percent of pupils who chose turkey noodle sets = 15%

Percent of pupils who chose mutton and turkey noodle sets
= 35% + 15%
= 50%

Total number of pupils who chose tuna and mutton noodle sets
= 50 x 3 
= 150

Answer(s): 150