Question

If A and B are the two real values of k for which the system of equations $x + 2y + z = 1,x + 3y + 4r = k.x + 5v + 10z = k^2$ is consistent, then $A + B =$

• A. 3
• B. 4
• C. 5
• D. 7

Answer 1

Answer: (A)

3

Answer 2

Answer (a) 3