A coin purse has 3 OLD one-peso coins and 7 NEW one-peso coins. Suppose you randomly pick a coin and upon selecting, a dummy silver coin is placed on the purse as a placeholder for the coin you picked. If a second coin is picked from the coin purse, what is the probability that the second coin is an OLD one peso? a. 7/25 b. 3/50 c. 14/50 d. 17/50

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