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      Question

      The least number which when divided by 10, 12, 15 and 20

      leave zero remainder in each case and when divided by 24 leaves a remainder of 12 is:
      A 60 Correct Answer Incorrect Answer
      B 144 Correct Answer Incorrect Answer
      C 72 Correct Answer Incorrect Answer
      D 420 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      LCM of 10, 12, 15 and 20 = 60 Required number = 60, because it is exactly divisible by 10, 12, 15 and 20 and it leaves remainder 12 when divided by 24.

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