A motorcyclist drives from point A to point B with a uniform speed of 30 km h^–1 and returns back to point A with a uniform speed of 20 km h^–1. Find the average speed of the motorcyclist.

Question

A motorcyclist drives from point A to point B with a uniform speed of 30 km h –1 a nd returns back to point A with a uniform speed of 20 km h –1 . F ind the average speed of the motorcyclist.

Philoid · Accepted Answer

Let distance from A to B = x Km

Time to go from A to B i.e. t₁ = x/30 hours

Time to return from B to A i.e. t₂ = x/20 hours

Total time = t₁ + t₂

= hours

Average Speed =

=

= 24 km/h

A motorcyclist drives from point A to point B with a uniform speed of 30 km h–1 and returns back to point A with a uniform speed of 20 km h–1. Find the average speed of the motorcyclist.

A motorcyclist drives from point A to point B with a uniform speed of 30 km h^–1 and returns back to point A with a uniform speed of 20 km h^–1. Find the average speed of the motorcyclist.