M men agree to purchase a gift for Rs. D. If three men drop out how much more will each have to contribute towards the purchase of the gift ?

• initially, each contributION = D/M
  
  after, 3 men droped, each contribution = D/(M-3)
  
  reqd more amount = D/(M-3) - D/M = D[1/(M-3) - 1/M] = 3D/M(M-3)
  
• 9 years agoHelpfull: Yes(26) No(1)
• according to the question.....
  M men agree to puchase a gift for D
  therefore for d the gift has to be purchased
  so each contributed=D/M
  
  THEN 3 men dropped out from M=D/M-3
  REQUIRED CONTRIBUTION FOR THE GIFT=D/(M-3) - D/M = D[1/(M-3) - 1/M]
  = 3D/M(M-3) ANSWER.....
  
• 9 years agoHelpfull: Yes(2) No(2)
• initial contribution = D/M
  final contribution = D/(M-3)
  Difference = D/(M-3) - D/M
  =>Difference =D[{M - (M-3)}/{M X (M-3)}]
  =>Difference= 3D/[M(M-3)]
• 9 years agoHelpfull: Yes(2) No(1)
• M contribute for gift worth= D
  each share in it= D/M
  when 3 dropped then
  each share increases = D/ (M-3)
  extra share given by them = D/ (M-3) - D/M = 3D/M(M-3)
• 9 years agoHelpfull: Yes(1) No(0)
• M men purchased gift of M
  so, contribution of each man=D/M
  now 3 men reduces, so the contribution of each men inc by 3D/M among (M-3) men
  i.e M-3=3D/M
  1M=3D/M(M-3)
  total contribution of each man= D/M+3D/M(M-3)
  =D/(M-3)
• 9 years agoHelpfull: Yes(1) No(0)