In the 2001 census, the population of India was found to be `8. 7 * 10^7dot` If the population increases at the rate of 2.5% every year, what would be the population in 2011?

A population grows at the rate of 2% per year. How long does it take for the population to double?

If a population of 50 Paramecium present in a pool increases to 150 after an hour, what would be the growth rate of population ?

The total population in India alarmingly increased to 1 billion according to 2001 census. The population growth rate was still around 1.7% a rate at which our population could double in 33 years. Cite the probable reasons for such an increase in population growth rate.

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

A manufacturer of TV sets produced 600 sets in the third year and 700 sets in the seventh year. Assuming that the production increases uniformly by a fixed number every year, find: (i) the production in the 1st yea (ii) the production in the 10th year (iii) the total production in first 7 years Solution :

The population of a village increases continuously at the rate proportional to the number of its Inhabitants present at any time. It the population of the village was 20,000 in 1999 and 25,000 in the year 2004, what will be the population of the village in 2009 ?