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      Question

      80% of a number is the same as 64% of another number. If

      their combined value is 360, find the difference of the numbers.
      A 45 Correct Answer Incorrect Answer
      B 40 Correct Answer Incorrect Answer
      C 50 Correct Answer Incorrect Answer
      D 33 Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the numbers be ‘x’ and ‘y’ respectively.

      According to the question,

      ⇒ 0.80x = 0.64y

      ⇒ x/y = 0.64 / 0.80 = 4/5

      So the numbers are in the ratio 4 : 5

      Sum of the numbers = 4 + 5 = 9 units = 360

      ⇒ 1 unit = 360 ÷ 9 = 40

      ⇒ Difference = (5 – 4) units = 1 unit = 40

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