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The ratio of the prices of three articles X, Y and Z is 8 : 5 : 3. If the prices of X , Y and Z are increased by 25%, 20% and 33 1/3% respectively, then what would be the ratio of the new prices of X, Y and Z?

Correct answer: B. 5 : 3 : 2

  • A. 5 : 3 : 1
  • B. 5 : 3 : 2
  • C. 10 : 7 : 4
  • D. 10 : 8 : 5
  • E. None of these

Explanation

Apply each increase to the original ratio: X = 8 x 1.25 = 10, Y = 5 x 1.20 = 6, and Z = 3 x 4/3 = 4. The new ratio is 10:6:4 = 5:3:2; option c, 10:7:4, uses an incorrect increase for Y.

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