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Q: If 2x + 3y – 5z = 18, 3x + 2y + z = 29 and x + y + 3z = 17, then what is the value of xy+yz+zx?
  • A. 32
  • B. 52
  • C. 64
  • D. 46
Correct Answer: Option B -
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Explanations:

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