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

examrobotsa's picture
Q: 142 (IAS/1995)
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 ?

question_subject: 

Maths

question_exam: 

IAS

stats: 

0,13,6,1,5,13,0

keywords: 

{'silver coin': [1, 1, 1, 1], 'gold coin': [0, 3, 0, 0], 'silver coins': [0, 4, 0, 0], 'probability': [0, 3, 3, 0], 'gold coins': [2, 0, 1, 0], 'drawer': [0, 2, 0, 0], 'drawers': [0, 3, 0, 0], 'coin': [0, 3, 6, 4], 'other coin': [0, 1, 0, 0], 'table': [0, 0, 1, 0]}