Pair of linear equations $2x+ky=5$ and $4x+6y=p$ is inconsistent. Which one of the following cannot be the value of $(k+p)$?
Answer & explanation
Correct answer: option 3
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