If the population of country double in 50 years, in how many years will it triple under the assumption that the rate of increase is proportional to the number of inhabitants.

If the population of a country doubles in 60 years , in how many years will it be triple (treble) under the assumption that the rate of increase is proportional to the number of inhabitants ?

If the population of a country doubles in 60 years,in how many years will be triple(treble)under the assumption that the rate of increase is proportional in the number of inhabitants?given : log 2=0.6312,log 3=1.0786 .

The population of a country doubles in 50 years. How many years will it be five times as much? Assume that the rate of increase is proportional to the number inhabitants. (hint: log2=0.6931, log5=1.6094)

The population of city doubles in 80 years , in how many year will it be triple when the rate of increase is proportional to the number of inhabitants.

The population of a country doubles in 50 years. Assuming that the rate of increase of population is proportional to the number of inhabitants, in how many years would the population becomes three times ?

The population P in any year t is such that the rate of increase in the population is proportional to the population. Then

If in the population of a town there is an increase of 44% in the first year and 75% in the second year,then what is the average rate of increase in the population?