Question

the population of town 18000. if it increases by 10% in first year and 20% during second year, what will be the population after 2 years?

Answer 1

Population of town=18000.
Given that population of town increases by 10% in first year and 20% during second year.
Then,
Population of town after 1 year=18000+(10/100×18000)

Population of town after 1 year=18000+1800

Population of town after 1 year=19800

Now,
Population of town after 2 years=19800+(20/100×19800)

Population of town after 2 years=19800+3960

Hence,
Population of town after 2 years=23760