James left Town A at 2.30p.m for Town B which was 551km away.He arrived in Town B at 7.15pm.What was his average speed

Average speed is given by:

\frac{Distance}{Time\ Taken}

Convert the time into minutes only, or into hours only.

If you do the first one, your speed will be in km/min, if you do the second one, your speed will be in km/hr.

Post what you get! :)