Who walks at a faster rate? Makenna who walks 60 feet in 10 seconds or Christian who walks 576 inches in 6 seconds?

Christian because Makenna is going at a rate of 6ft/1s while christian is going at a rate of 8ft/1s

I got christians rate by dividing 576/12, which is 48 and i put 48/6 and 6x8 is 48 so when you divide its 8ft/1s