Profit on selling 10 candles equals selling price of 3 bulbs. While loss on selling 10 bulbs equal selling price of 4 candles. Also profit percentage equals to the loss percentage and cost of a candle is half of the cost of a bulb. What is the ratio of selling price of candles to the selling price of a bulb?

• ক 3 : 2 ✅ সঠিক উত্তর
• খ 3 : 4
• গ 4 : 5
• ঘ 5 : 4