Question

City a population is 68000, decreasing at a rate of 80 per year city b having population 42000 increasing at a rate of 120 per year. in how many years both the cities will have same population

Answer 1

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Answer 2

Answer:

let the population be same after x years

the population of city A after x yrs =68000-80x

the population of city B after x yrs =42000+120x

according to question

=> 68000-80x= 42000+120x

=> 26000=200x

=> 200x =26000

=> x = 26000 /200

=> x= 130 years

In 130 years both the cities will have same population

======================

@GauravSaxena01