Question
A jar contains five 25 paise coins, ten Rs. 1 coins, and
ten Rs. 5 coins. One coin was accidentally dropped and lost. Find the probability that the lost coin is not a Rs. 5 coin.Solution
Number of Rs. 5 coins = 10
Total number of coins = 5 + 10 + 10 = 25
So, the required probability = 1 - 10/25 = 15/25 = 3/5
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