the population of a town is 32400.For the past 2 years the population has been decreasing at the rate of 10% per annum due to people migrating to other cities. What was the population 2 years ago? plz plz solve this question its urgent
Answers
Answered by
3
total population 32400 decrease 10 percent per year
(32400×10)÷100=3240 in 2 year
6480
left people 32400-6480=25920
(32400×10)÷100=3240 in 2 year
6480
left people 32400-6480=25920
ShAnAyA529:
ur answer is wrong
answer 40,000 aa rha hai
Answered by
5
32400 is current population
so 1 yr ago 100 -32400
so 1 % is 32400/90=360
so 1 yr ago population is 360×100=36000
2 yr ago 100-36000
so 1% is 36000/90=400
so 2 yr ago it's 400×100=40000
it's trick method not conventional so
so 1 yr ago 100 -32400
so 1 % is 32400/90=360
so 1 yr ago population is 360×100=36000
2 yr ago 100-36000
so 1% is 36000/90=400
so 2 yr ago it's 400×100=40000
it's trick method not conventional so
Similar questions