Problema Solution
It takes 1 hour longer to fly to St. Paul at 200mi/h than it does to return at 250mi/h. How far away is St. Paul.
Answer provided by our tutors
let
d = the distance to St. Paul
t = the time of the return flights
t + 1 = the time of the fly to St. Paul
v1 = 200 mi/h the speed of the flight to St. Paul
v2 = 250 mi/h the speed of the flight back
since distance = speed*time we have:
v1*(t + 1) = v2*t
200(t + 1) = 250t
by solving we find:
t = 4 hr
click here to see the step by step solution of the equation:
d = v2*t = 250*4 = 1,000 mi
St. Paul is 1,000 miles away.