TSA 2011 · Question 24 · Logic
SaveAs part of a journey, I must travel from Bowbridge to Downland. I can choose either the motorway (known locally as 'the road to hell') or the old road known as Buttercup Way. On the motorway I average 60 mph, on the old road I average 40 mph. I can change from one to the other at Clatterton where they cross.

If I take the fastest route, what will be the time saving over the slowest route?