Jim and Elaine were driving from Toronto to Ottawa, a distance of 400 kilometres. Jim drove 1⁄4 of the way. Then Elaine took over and drove 1⁄2 of the remaining distance. How far did they still have to travel?
(a) 100 km (b) 150 km (c) 200 km (d) 50 km (e) none of these
could you explain the solution?
