Answer:
the penguins swam 25 times in one place for an entire hour.
Explanation:
what I think you can do is 4/5 x 3 because 20 x 3 equals 60 which there is 60 mins in an hour after getting your answer for 4/5 x 3 which equals to 2.4 so than you divide 60 ÷ 2.4 = 25 so I think they swam 25 times in the same place for an entire hour.