Question

The 20 girls in Mr. Smith's science class added the lengths of

all 100 of their pill bugs. The total length was 900 millimeters.
What was the average number of pill bugs each girl had?
What was the average length of each pill bug?

Answer 1

Each girl has 5 pill bugs each.

The length of each pill bug should be 9 millimeters

Explanation:

100 divided by 20 equals 5

900 divided by 100 equals 9