Hi so the answer is 23 minutes and 15 seconds or 23 1/4
2 minutes and 30 seconds times three (to create a whole mile) is 7 minutes and 30 seconds 7 minutes and 30 seconds times or 7.5 times 3.1 = 23.25 which means 23 minutes/whole numbers .25=1/4 or 15 seconds hope this helps :)
