Activity Sixth Graders Seventh Graders Total

Walk 3 6
Bike 5 3
Skateboard 2 1
Total

What percentage of the students who chose biking were seventh graders?
A. 30%
B. 37.5%
C. 40%
D. none of these

1 answer

To calculate the percentage of the students who chose biking that were seventh graders, we need to first find the total number of students who chose biking and the number of seventh graders who chose biking.

Total number of students who chose biking: 5+3 = 8
Number of seventh graders who chose biking: 3

To find the percentage, we can use the formula:

(Seventh graders who chose biking / Total number of students who chose biking) x 100

(3/8) x 100 = 37.5%

Therefore, the answer is (B) 37.5%.