The value of $\lambda$ for which the equations $2x - 3y = 3$, $3x - 2y = 1$, $4x - \lambda y = 2$ are consistent is
- A. 3 or 6
- B. 1 or 3
- C. 2 or 6
- D. 2 or 3
Answer: A. 3 or 6
Explanation: Consistent implies determinant of augmented matrix is zero, or solving first two gives x,y then satisfy third.