Answer: He can make 8 animal balloons in 6 minutes.
Explanation:
Given : Fred the clown can create 20 animal balloons every 15 minutes.
We assume the rate of making animal balloons per minute is constant.
Now, the number of animal balloons made in 1 minute =

Then, the number of animal balloons made in 6 minutes =

Hence, He can make 8 animal balloons in 6 minutes.