<PRE><B>Question 842433</B>
Hi! 

The bus journey to get there was 100km yes? You were travelling at 75km/hr
So using the Time = Distance /Speed formula; 
100/75 = 4/3hrs (which is equivalent to 1hr 20 minutes)

Now your entire journey was 3hrs. The return back to the town would STILL BE 100KM. 

So 3hrs-1hr20 mins = 5/3hrs (Equivalent to 1hr 40mins)

Now remember our formula? Speed = Distance/ Time

So therefore: S = 100000m /100min

1000m/per minute

There are 60minutes in an hour

So 60 x 1000 = 60,000m (which is also equivalent to 60km/hr)

Therefore the return rate is at 60km/hr!

Hope that helped! :)
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