Question 13
Ali has 80 candles. He lights one candle every day. He can recycle the wax of four used candles into one new candle. After how many days will he need to buy more candles?
Each candle lasts one day and leaves one usable wax portion. Recycled candles can be recycled again; no borrowing. Count the days fully supplied before a new candle must be bought.
Each candle lasts one day and leaves one usable wax portion. Recycled candles can be recycled again; no borrowing. Count the days fully supplied before a new candle must be bought.