The population of a city increases at the rate of 4% p.but there is an additional annual increase of 1% in the population due to some job seekers. The percentage increase in the population after 2 years is_?
A sum amount to Rs.1344 in two years at simple interest. What will be the compound interest on the same sum at the same rate of interest for the same period?
How much more would Rs.20000 fetch, after two years, if it is put at 20% p.compound interest payable half yearly than if is put at 20% p.compound interest payable yearly?
In one year, the population, of a village increased by 10% and in the next year, it decreased by 10%. If at the end of 2nd year, the population was 7920, what was it in the beginning?