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MHT CET20227 Aug 2022Evening ShiftMathematicsStraight LinesActual

If the lines 4 x+3 y-1=0, x-y+5=0 and k x+5 y-3=0 are concurrent, then k=

Options

  1. A5
  2. B6
  3. C7
  4. D4

Correct answer

B. 6

Step-by-step solution

For concurrency | array ccc 4 & 3 & -1 1 & -1 & 5 k & 5 & -3 array |=0 4(3-25)+3(5 k+3)-1(5+k)=0 -88+15 k+9-5-k=0 -84+14 k=0 k=6

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