Question 21
One day, Juan was tasked to bring equal number of candles to three magical chapels. He knows that to go to any chapel, he needs to pass through an enchanted bridge that doubles his candles. On his way to the first chapel, he passed through an enchanted bridge and observed his candles doubled. He has no more candle when he left the third chapel. What is the least possible number of candles does he have at first?
