Mathematics 0580 · IGCSE · Exponential growth and decay

Exponential growth and decay — practice question

(a(i))[2]

Calculate the total interest gained after 7 years if simple interest is used.

(a(ii))[3]

Calculate the total interest gained after 7 years if compound interest is used.

(b)[3]

Calculate the car's value 3 years ago.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate percentage calculation” …

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