A private plane traveled from Seattle to a rugged​ wilderness, at an average speed of 420 mph. On the return​ trip, the average speed was 300mph. If the total traveling time was 6 ​hours, how far is Seattle from the​ wilderness?

1 answer

let the distance from Seattle to wilderness be x miles
x/420 + x/300 = 6
times 2100 the LCM
5x + 7x = 12600
x = 1050 miles