Yeah, it is 12 at max without a case study. Because of the band that your essay would be in for not having refernece to a case study in the marketing criteria. That's how they would have to mark it.
"What is the total distance that Raj cycles, to the nearest kilometre?".. If you mean that question, I can't remember my answer. But I used the figure that we had to find in 'i' + 64km + the remaining two sides that I found by using pythagorus.