Mathematics 0580 · IGCSE · Exponential growth and decay

Exponential growth and decay — practice question

A town has a population of 54 000. This population is falling exponentially by 2% each year.
(a)[3]

Calculate the fall in the population after 4 years.

(b)[2]

Find the number of complete years needed for the population of 54 000 to first drop below 44 000.

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