Mathematics 0580 · IGCSE · Exponential growth and decay

Exponential growth and decay — practice question

(a)[3]

Find how many dollars Anil gets.

(b(i))[2]

Calculate the percentage of his earnings that goes on bills.

(b(ii))[2]

Calculate his earnings for 2022.

(c(i))[3]

Calculate the total interest gained after $5$ years.

(c(ii))[3]

Find how many complete years pass before Anil has at least $\$5000$ in this account.

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: Finding VAT $500\times1.16$

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