the population of a town is 15000.If the
number of males increases by 8% and that of females by 10%, then the population would increase to 16300. Find the number of females in the town.

• total population is 15000
  let no. of males=x and females=y
  so x+y=15000 (1)
  x increases by 8% the nwe x=108x/100
  y increases by 10 % then new y=110x/100
  now,108x/100+110y/100=16300 -(2)
  on solving 1 nd 2
  y=5000.
• 12 years agoHelpfull: Yes(6) No(0)
• Increase in population = 1300
  % increase in population= 1300/15000=13/150
  
  By method of alligation,
  Ratio of male to female earlier = 4/300 :2/300 or 2:1
  
  so number of females earlier = 15000*1/3=5000
  number of females now= 5000*1.1= 5500
• 12 years agoHelpfull: Yes(0) No(10)