Mathematics B (MEI) H630: MODELS AND QUANTITIES Topical Past Paper Questions

A family is planning a holiday in Europe. They need to buy some euros before they go. The exchange rate, y, is the number of euros they can buy per pound. They believe that the exchange rate may be modelled by the formula $$ y=a t^{2}+b t+c, $$ where t is the time in days from wh…

On the day that a new consumer product went on sale (day zero), a call centre received 1 call about it. On the 2nd day after day zero the call centre received 3 calls, and on the 10th day after day zero there were 200 calls. Two models were proposed to model $N$, the number of ca…