Q. A man bought a television and a dvd player. If he sold the television at a loss of 5% and the player at a gain of 10%, he neither gains nor loses from the transaction. But if he sells the television at a gain of 20% and the player at a loss of 10% he gains Rs3000. Find the cost price of the television.

Please help me solve this question in easy way.

• Rs 20000/-
  if t and p are cp of tv and players respectively, then
  0.95t+1.1p= t+p or 0.05 t= 0.1 p; t= 2p; p=t/2
  1.2t+0.9p=t+p+3000
  solving , we get,
  t= Rs 20000/-
• 11 years agoHelpfull: Yes(3) No(0)
• Let cost price of TV & DVD are x,y respectively
  TV-loss 5% and DVD-gain 10%; so => (95/100)x+(110/100)y=x+y..............{1}
  TV-gain 20% and DVD-loss 10%; so => (120/100)x+(90/100)y=x=y=3000........{2}
  the above equation written basis on selling price formula for gain and loss.
  ok,now solve these two then we will get x= Rs20,000;which is cost price of TV
• 10 years agoHelpfull: Yes(1) No(0)