the population of india increase by 25% annually if the present population is 1crore.then what is the difference between the population 3yrs ago and 2yrs ago

• difference =1280000
  2 year ago =6400000
  3 year ago =5120000
  this is solved by the formula of compound interest.. bt we use past tym as power in negative...
  population= prsnt(1+(rate/100))^year
  for past years use - value (-2, -3)
• 12 years agoHelpfull: Yes(16) No(4)
• final answer is 12,80,000
• 12 years agoHelpfull: Yes(14) No(1)
• consider 1crore=100 lacks
  1 yrs ago population=100-25% =75
  2 yrs ago population=75-25% =56.25
  3 yrs ago population=56.25-25% =42.1875 lacks
  now diff=56.25-42.1875 = 14.0625 lacks..
  am I right??????
• 12 years agoHelpfull: Yes(6) No(19)
• by using the formula of CI the diff is 1280000
  m i correct???
  
• 12 years agoHelpfull: Yes(5) No(0)
• yes the final ans is 12,80,000
• 12 years agoHelpfull: Yes(4) No(0)
• 2 year ago=72,00,000
  3 year ago=69,12,000
• 12 years agoHelpfull: Yes(0) No(9)
• 1 cr (16/25 - 64/125) = 12.8 lack must be the answer
• 8 years agoHelpfull: Yes(0) No(0)