Riddle: A cloud has an initial volume of 1 km^3. The cloud grows 4% bigger every minute than it was the previous minute. How big is the cloud in km^3 after 1 hour? Answer to Riddle: Compounding growth formula y = x*(1 + z)^n y = new size x = original size z = percent change each internal n = number of intervals y = 1 km^3*(1 + 0.04)^60 y = 1*(1.04)^60 km^3 y = 10.5 km^3 The cloud grows more than 10 times the original size during the hour. |