The total number of sixth graders who participated in the survey is 3+5+2=10, and the total number of seventh graders who participated in the survey is 6+3+1=10. Therefore, the total number of students who participated in the survey is 10+10=20.
So, the correct answer is B. 20.
Activity Sixth Graders Seventh Graders Total
Walk 3 6
Bike 5 3
Skateboard 2 1
Total
How many total students participated in the survey?
A. 10
B. 20
C. 15
D. none of these
1 answer