An aeroplane covers its outward journey at 600 kmph.

It returns, over exactly the same distance, at 400 kmph.

What is the average speed of the aeroplane over the entire journey?

0 votes

An aeroplane covers its outward journey at 600 kmph.

It returns, over exactly the same distance, at 400 kmph.

What is the average speed of the aeroplane over the entire journey?

...