Answer:
The 7th grade team picked more pumpkins per minute.
Explanation:
If you take 16 pumpkins and divide it by the 4 minutes, so you can get the one to one ratio you would get 4 pumpkins per minute for the 6th grade team. Now we do the same thing with the seventh grade team and 48 divided by 8 is 6 pumpkins per minute. So 6 pumpkins per minute is larger than 4 pumpkins per minute. That means the 7th grade picked the pumpkins the fastest.
Hope this helps ;)