The motorcyclist traveled 90 km in the first two hours, and the next three hours moved at a speed of 50 km / h

The motorcyclist traveled 90 km in the first two hours, and the next three hours moved at a speed of 50 km / h. What is the average speed of the motorcyclist along the entire journey?

These tasks: the first leg of the route (t1 = 2 hours and S1 = 90 km); the second segment of the path of the motorcyclist in question (t2 = 3 h and V2 = 50 km / h).

Let us derive a formula for calculating the desired average speed of the considered motorcyclist along his entire path: V = (S1 + S2) / (t1 + t2) = (S1 + V2 * t2) / (t1 + t2).

Let’s make a calculation: V = (90 + 50 * 3) / (2 + 3) = (90 + 150) / 5 = 240/5 = 48 km / h.

Answer: The speed of the motorcyclist in question along the entire path is 48 km / h.