A cyclist travels 30km from A to B at an average speed of 25km/h.....?

[irieD]

...and immediately continues the journey to C, which is a further 60km away at an average speed of 20km/h. Determine the average speed for the whole journey? please explain how u calculate the average. thanks

 

[Saeed]

do it by ur self

 

[DeeDee:t:t]

I think this is right.
To get the average you normally add the miles hes done then times it by two cause they is two speeds and yeh. So

30 + 60 = 90 then 90 divided by 2 (25 and 60km/h) and that is 45 So yeh i think its right