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Deepak Bora
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Asked: 2020-07-26T20:18:40+05:30 In:

Find the value(s) of k so that the pair of equations x + 2y = 5 and 3x + ky + 15 = 0 has a unique solution.

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CBSE 10th Class past year question paper

Year 2019

SET 1, Code Number- 30/2/1

Question number – 10

cbse 10th classncert classprevious year paper
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    1 Answer

    1. For unique solution

      1/3 ≠ 2/k
      ⇒ k ≠ 6

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