By selling 10 candles a person gets a profit of the selling price of 3 pens whereas by selling 10 pens he incurs a loss of the selling price of 4 candles. The loss percentage and profit percentage are equal, and the cost price of the candle is half of the cost price of the pen. Find the ratio of sales of candles and pens.
CP=10x Profit =3b Percentage profit = (3b/10x) ×100 … (1) Now for pen Cp =20x Loss=4a Loss percentage=(4a/20x) ×100 … (2) ATQ- The loss percentage and profit percentage are equal. (3b/10x) ×100 =(4a/20x) ×100 3b=2a a: b=3:2.
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