The population of a city increases at the rate 3% per year. If at time t the population of city is p, then find equation of p in time t.

The population of a city increases at the rate of 10% per annum. Find the population of the city in the year 2007 if its population in 2005 was 2 crores.

The population of a city increases at the rate of 5% pa. If the present population of the city is 370440, then what was its population 3 yr ago?

The population of a city increases at the rate of 5% pa. If the present population of the city is 185220, then what was its population 3yr ago?

The population of a city increases by 30% every year. If the present population is 338000, then what was the population of the city of two years ago ?

The population of a city increases at a rate proportional to the population at that time. If the polultion of the city increase from 20 lakhs to 40 lakhs in 30 years, then after another 15 years, the polulation is