On one day, 12000 vehicles pass through a road toll.
The ratio of cars to trucks to motorcycles is 13 : 8 : 3.
(a(i))[1]
Show that the number of cars passing through the road toll on that day is 6500.
(a(ii))[1]
Calculate how many trucks pass through the road toll on that day.
(b)[2]
Show that the total toll payment collected on that day is $34500$.
(c)[3]
Calculate the total amount paid on that day in 2013.
(d)[2]
State, in simplest form, the fraction of car drivers who pay by credit card.
(e)[1]
Write down the lower bound for this number of cars.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The required setup is $\frac{13}{13+8+3}\times12000$ with no subsequent errors” …