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

Spaghetti Sets	Students
Chicken	25%
Egg	5%
Mutton	20%
Beef	50%

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

Number of students who chose egg spaghetti sets = 10

5% of students = 10

1% of students = 10 ÷ 5 = 2

Percent of students who chose mutton spaghetti sets = 20%
Percent of students who chose chicken spaghetti sets = 25%

Percent of students who chose mutton and chicken spaghetti sets
= 20% + 25%
= 45%

Total number of students who chose egg and beef spaghetti sets
= 45 x 2
= 90

Answer(s): 90