You walk 2 miles in 1212 hour. At that rate, how long will it take you to walk 3 miles?
Take 1212 and divide it by 2 and you get 606 which is how long it takes per mile .So I took 1212 and added 606 and got 1818.And to check the division take 606+606 and it = 1212.
The answer is 1818 hours. hope this helps