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      Question

      What is the least number of three digits, which when

      divided by 6, 12 and 15 leaves no remainder?
      A 210 Correct Answer Incorrect Answer
      B 150 Correct Answer Incorrect Answer
      C 120 Correct Answer Incorrect Answer
      D 180 Correct Answer Incorrect Answer

      Solution

      6 = 2 Γ— 3 12 = 2 Γ— 2 Γ— 3 15 = 3 Γ— 5 LCM (6, 12, 15) = 3 Γ— 2 Γ— 2 Γ— 5 = 60 any multiple of 60 is divisible by 6, 12, 15 without leaving any remainder. β‡’ Hence, 120 is the least number of options that satisfy our condition.Β 

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