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      Question

      If (2x+3) :(5x+4), 3 times the ratio of 3:4 then find

      the value of x2
      A 121 Correct Answer Incorrect Answer
      B 100 Correct Answer Incorrect Answer
      C 81 Correct Answer Incorrect Answer
      D 144 Correct Answer Incorrect Answer

      Solution

      (2x+3)/ (5x+4) =(¾)3 128x+192 =135x +108 7x =84 X = 12 Square of x = 144

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