You can't know with only volume. Sorry.
Before cooling begins, the temperature of the water is 22°C.
Answer:
s = 3.75 miles/hour
Step-by-step explanation:
Distance covered = 1/4 of a mile
Time taken = 1/15 of an hour
We need to find the speed of the track. We know that,

So, the required speed is 3.75 miles/hour.