1. Dan stopped the car where a lane led off from the main road. The lane led dead straight to Bob's place, just 17 kilometres away. Unfortunately the lane was closed to traffic, so Dan had to work out an alternative route. Dan was just one third the way along the straight highway from Brent to Kenton. He's 19 kilometres from Kenton, but the Brent route is 4 kilometres shorter. How far was Bob from Brent?

Bob was 35 kilometres from Brent.

Bob was 29 kilometres from Brent.

Bob was 31 kilometres from Brent.