A mining company is evaluating the output of a lithium reserve.
Model A assumes that the annual yield will decrease by the same fixed amount each year.
According to model A, determine the amount of lithium extracted in Year 2.
Model B assumes that the annual yield will decrease by the same percentage each year.
According to model B, determine the amount of lithium extracted in Year 2. Give your answer to the nearest tonne.
Calculate the difference between the total yield predicted from Year 1 to Year 16 inclusive under the two models. Give your answer to the nearest tonne.
20 exam-style questions on Edexcel A Level Maths 3.8 Modelling with Series. Each one has a worked solution and a mark scheme showing where the marks go.