Question
There are three 50 paise coins, nine Rs. 1 coins, and
fifteen Rs. 2 coins in a container. One coin was lost. Find the probability that it is not a 50 paise coin.Solution
Number of 50 paise coins = 3
Total number of coins = 3 + 9 + 15 = 27
So, the required probability = 1 - 3/27 = 24/27 = 8/9
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