NCERT Exercise 14.1 - Q10(ii) - Probability
Question: Harpreet has several piggy banks containing different numbers of 50 p coins, Re 1 coins, Rs 2 coins and Rs 5 coins. If one coin is removed at random from a piggy bank containing 100 coins of 50 p, 50 coins of Re 1, 20 coins of Rs 2 and 10 coins of Rs 5, find the probability that (ii) the coin is not a Rs 5 coin.
Answer: P(not Rs 5 coin) = 17/18.
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