Question

A survey asked a group of students to choose their favorite type of snack. The results of the survey are shown in the graph.

Answer 1

30 students.

5 + 2 + 4 + 7 + 5 + 9 = 32 students

192 students. 32 students = 6

so, 

7 − 2 = 5

5 students × 6 = 30 students

Answer 2

Answer:       30 students.

5 + 2 + 4 + 7 + 5 + 9 = 32 students

Cheese

7 students

32 students

=  

7

32

192 ×  

7

32

= 42

Crackers

2 students

32 students

=  

2

32

=  

1

16

192 ×  

1

16

= 12

Therefore,  

42 − 12 = 30