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

Spaghetti Sets	Pupils
Vegetarian	5%
Tuna	35%
Chicken	10%
Hotdog	50%

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

Number of pupils who chose vegetarian spaghetti sets = 15

5% of pupils = 15

1% of pupils = 15 ÷ 5 = 3

Percent of pupils who chose vegetarian spaghetti sets = 5%
Percent of pupils who chose chicken spaghetti sets = 10%

Percent of pupils who chose vegetarian and chicken spaghetti sets
= 5% + 10%
= 15%

Total number of pupils who chose vegetarian and chicken spaghetti sets
= 15 x 3
= 45

Answer(s): 45