Question

Today the population of a city is 250,000 and is growing at a rate

of 4% per year. When or how many years will the population reach
850,000

Answer 1

Explanation:

Principal = 250,000

Rate = 4%

Simple interest = 850,000

Time = ?

`t = (100 * interest)/(principal * rate) \\ t = (100 * 850000)/(250000 * 4) \\ t = (100 * 85)/(25 * 4) \\ t = (8500)/(100) \\ t = 85years`