The system of linear equations x+2y+z=4, 2x+4y+2z=8 and 3x+6y+3z=10 has

NDA 2023 Mathematics question

The system of linear equations , and has

Answer: (C)

The second equation is twice the first, so both say . Dividing the third by 3 gives $x+2y+z =

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Question ID VK-029539