Q. For the past two years it is observed that the population of a place is increasing by 10% per year. If the present population is 6171 then the population two years ago was:
A) 4937
B) 5000
C) 5554
D) 5100

• D) 5100
  
  If population, two years ago was 'x' , then @ 10% increase per year, after 2 years
  x*(110/100)*(110/100)=6171
  6171/1.21=5100
• 9 years agoHelpfull: Yes(1) No(0)
• population 2 years ago=p/(1+r/100)^2=6171/(1+10/100)^2=5100
• 8 years agoHelpfull: Yes(1) No(0)