It will take 15 seconds. You would multiply 50 by 7 and get 350. Then multiply 7 by 2 getting 14 seconds. Split the 2 seconds making it one second and you'll get 375 miles
the answer is 15 because 350 meters would take 14 seconds and 50 meters takes 2 seconds. This means 1 sec would be 25 meters so add the second to the 14 and there you go.
