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  1. The value of k for which kx + 3y - k + 3 = 0 and 12x + ky = k, have infinite solutions, is
    1. 0
    2. -6
    3. 6
    4. 1
Correct Option: C

For infinite solution
a1/a2 = b1/2 = c1/c2
⇒ K/12 = 3/K = (-K + 3)/ -K
⇒ K/12 = 3/K
⇒ K2 = 36
∴ K = √36 = 6


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