PSLE
A group of pupils was asked to choose one noodle set from mutton, turkey, hotdog 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 hotdog and mutton noodle sets?

Noodle Sets	Pupils
Mutton	30%
Turkey	5%
Hotdog	15%
Beef	50%

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

Number of pupils who chose turkey noodle sets = 20

5% of pupils = 20

1% of pupils = 20 ÷ 5 = 4

Percent of pupils who chose hotdog noodle sets = 15%
Percent of pupils who chose mutton noodle sets = 30%

Percent of pupils who chose hotdog and mutton noodle sets
= 15% + 30%
= 45%

Total number of pupils who chose turkey and beef noodle sets
= 45 x 4
= 180

Answer(s): 180