SOLUTION: A jar has 20 nikels, 20 pennies, 30 dimes, and 40 quarters. A coin is picked, and is put to the side. Another coin is chosen from the jar. Whats the probability that both coins cho

SOLUTION: A jar has 20 nikels, 20 pennies, 30 dimes, and 40 quarters. A coin is picked, and is put to the side. Another coin is chosen from the jar. Whats the probability that both coins cho

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Question 1061811: A jar has 20 nikels, 20 pennies, 30 dimes, and 40 quarters. A coin is picked, and is put to the side. Another coin is chosen from the jar. Whats the probability that both coins chosen are quarters?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
110 coins.
Probability first is a quarter is 40/110
the probability the second is a quarter is 39/109
The joint product is the probability (4/11)(39/109)=156/1199
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