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

Sandwiches	Students
Mutton	25%
Tuna	20%
Turkey	5%
Vegetarian	50%

Number of students who chose turkey sandwiches is the least. So it is represented by the shortest bar.

Number of students who chose turkey sandwiches = 20

5% of students = 20

1% of students = 20 ÷ 5 = 4

Percent of students who chose mutton sandwiches = 25%
Percent of students who chose tuna sandwiches = 20%

Percent of students who chose mutton and tuna sandwiches
= 25% + 20%
= 45%

Total number of students who chose turkey and mutton sandwiches
= 45 x 4 
= 180

Answer(s): 180