If the rate of increase in population of is r% per year, the population after t years is p, Find the population that was t years before.

If the rate of increase in population is r% per year, the population after n years is p, find the population that was n years before.

If the rate of increase of population is 5% per year, then in how many years the population will be doubled?

If the rate of increase of population is 5% per year, then in how many years the population will be doubled?

The population of a village increase by r% each year. If P be the population after n years, then population n years ago was

If the population P of a town increases at R% per annum, then its population after 5 years is …….

The population of the village increases by r% each year. If P be the population aftern years, then population n years ago was

Find the population of a city at any time t,given that the rate of increase of population is proportional to the population at that instant and that in a period of 40 years the population increased 30,000 to 40,000.

Find the population of a city at any time t, given that the rate of increase of population is proportional to the population at that instant and that in a period of 40 years the population increased from 3,00,000 to 4,00,000.