Answers

  • Brainly User
2016-03-07T19:47:26+05:30
 Original number of persons—n: 
9000 were equally divided among certain people= 9000/n

9,000/n - 160 = 9,000/(n + 20) 
(9,000 - 160n)/n = 9,000/(n + 20) 
9,000n = 9,000n - 160n^2 + 180,000 - 3,200n 
n^2 + 10n = 1,125 + 10^2 
n^2 + 10n = 1,125 + 100 
(n + 10)^2 = 1,225 
n + 10 = 35 
      n   = 35-10
      n   = 25 

Answer: 25 persons originally 
1 1 1
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A sum of rupees 120 was distributed among a certain number of boys If there had bren 4 boys less each would have received rupee more find the number of boys ?