Cecil is deciding whether to walk or take a bus to get to work. There are two routes he could take. The shorter route is along a 2.8 km path Khat only
pedestrians are allowed to use. The bus takes a longer route along a road.
Cecil is talking to his colleagues about his journey to work.
Cecil
I expect it will
take about an
hour and a half
to walk to work. Estimate how long it would take Cecil to walk the pedestrian route.
Use your answer to determine whether Cecil's expectation is sensible.