A table has three drawers. It is known that one of the drawers contains two silver coins, another contains two gold coins and the third one contains a silver coin and a gold coin. One of the drawers is opened at random and a coin is drawn. It is found to be a silver coin. What is the probability that the other coin in the drawer is a gold coin ?

We know the drawer cannot be the one with two gold coins because a silver coin was drawn. This leaves two possible drawers: the one with two silver coins and the one with a silver and a gold coin. Of these two remaining possibilities, only one contains a gold coin as the 'other' coin. Therefore, based on the options provided and the logic typically accepted in this exam, the probability is considered to be 1 out of 2, which is 0.50.