To find how fast the elephant runs in one hour, we can first find out how fast it runs in 1 minute.
Since 1 minute = 60 seconds, and since the elephant runs 1/4 of a mile in 30 seconds, the elephant runs 1/2 of a mile in 1 minute.
Now, since there are 60 minutes in 1 hour, we can multiply 1/2 by 60 to find that the elephant runs 30 miles per hour.
