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      Question

      The product of two positive

      numbers is 432. If one number is three times the other, find the difference between the two numbers.
      A 28 Correct Answer Incorrect Answer
      B 24 Correct Answer Incorrect Answer
      C 32 Correct Answer Incorrect Answer
      D 15 Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let us assume the one of the numbers is 'x' Then, another number is = 3 × x = '3x' So, x × 3x = 432 Or, 3x2 = 432 Or, x2 = 144 Or, x = 12 {Since, the numbers are positive} Required difference = {3 × (12) - 12} = (36 - 12) = 24

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