A plane flew from Red Deer to Winnipeg, a flying distance of 1260 km. On the return journey, due to strong head wind, the plan travelled 1200 km in the same time it took to complete the outward journey. On the outward journey, the plane was able to maintain an average speed of 42km/hr greater than on the return journey. Calculate the average speed of the plane from Winnipeg to red deer.

Answer 1

Given: when the plane is going from red deer to Winnipeg distance travelled {eq}= 1260{/eq} km.

On returning distance travelled {eq}= 1200{/eq} km

Your welcome

Answer 2

time = distance/speed, so
1260/(s+42) = 1200/s