Question

5. The population of a city is
estimated to be 432000 after 2 yr. If
the population growth is 20%
per
annum. What is the current
population?
(a) 310000
(b) 285000
(c) 380000
(d) 300000
​

Answer 1

Hey there!

Here x is equal to 2 Year ago population

x*(120/100)(120/100)=4,32,000

x=(4,32,000*100*100)/(120*120)

x=43200000/144=3,00,000 population

so option (d) 300000 is your answer ! :)

#hope it helps!