Question
There are five Rs. 1 coins, four Rs. 2 coins, and fifteen
Rs. 5 coins in a pouch. One coin is lost. Find the probability that the lost coin is not a Rs. 1 coin.Solution
Number of Rs. 1 coins = 5
Total number of coins = 5 + 4 + 15 = 24
So, the required probability = 1 - 5/24 = 19/24
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