Question

An epidemic has hit Clinton City. Its population is declining 22% every hour. In just 4 hours, there are only 35,542 people left in the city. What was the initial population in the city before the epidemic broke out?
14,742
85,688
14,743

Answer 1

Every hour only 78% survive so we have the equation

35,542 = x(0.78)^4

x = 96,020 answer