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    • Question

      A box contains four Rs. 2 coins, eight Rs. 1 coins, and

      sixteen Rs. 5 coins. One coin is lost. Find the probability that the lost coin is not a Rs. 2 coin.
      A 5/7 Correct Answer Incorrect Answer
      B 3/4 Correct Answer Incorrect Answer
      C 6/7 Correct Answer Incorrect Answer
      D 1/2 Correct Answer Incorrect Answer

      Solution

      Number of Rs. 2 coins = 4
      Total number of coins = 4 + 8 + 16 = 28
      So, the required probability = 1 - 4/28 = 24/28 = 6/7

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