population of a country in 1990 was `8.75 xx 1067` and population became `9.45 xx 10^7` in 1993. Find the rate of increase of population each year .

The population of a town is 4.2 xx10^6. If the population increases by 75 per 1000 per annum, then what will be the population after 2 years? a. 4633628 b. 4853625 c. 5253495 d. 5853615

The population of a certain town was 50,000. In a year, male population increased by 5% and female population was increased by 3%. Now the population became 52,020. Then what was the number of males and females in the previous year?

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 total populatiion of a country is 2xx10^(8) . If the population increases at the rate of 12.5% at the interval of each 2 years, then what will be the population of the country after 6 years.

The population of a certain town was 50,000. In a year, the male population increased by 5% and the female population increased by 8% . Now the population became 53,220. What was the number of male and female in the previous year ?

The population of a city increases each year by 10%. If the present population of the city is 12000, then what would be the population after 2 years?