a manufacturer makes profit of 15 %by selling a colour t.v. for Rs 5,750 . if the cost of manufacturing increases by 30% and its selling price is increased by 20% , find the profit % made by the manufacturer .
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For the manufacturerProfit% = (SP-CP)/CP *10015/100 = (5750-CP)/CP0.15*CP = 5750 - CP1.15*CP = 5750CP = Rs 5000 Now, if CP increased by 30% i.e. CP' = CP + 30%CPCP' = 5000 + 0.3*5000 = Rs 6500 Also, the SP increases by 20% hence SP' = 5750 + 20% of 5750 =Rs 6900 hence new profit = SP' - CP' = 400hence, profit % = Profit/CP' *100 = 400/6500 *100 = 6.15%
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