Practicing Success
Pair of linear equations $2x+ky=5$ and $4x+6y=p$ is inconsistent. Which one of the following cannot be the value of $(k+p)$? |
11 12 13 15 |
13 |
2x + ky = 5 ---(1) 4x + 6y = p ----(2) Multiply equation 1 by 2 and compare it with equation 2. 4x + 2ky = 10 4x + 6y = p On comparing , 2k = 6 k = 3 and p = 10 Now, ( k + p ) = ( 3 + 10 ) = 13
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