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NDA2010MathematicsThree Dimensional GeometryActual

Let O (0,0,0), P (3,4,5), Q (m, n, r) and R (1,1,1) be the vertices of a parallelogram taken in order. What is the value of m+n+r ?

Options

  1. A6
  2. B12
  3. C15
  4. DNone of these

Correct answer

D. None of these

Step-by-step solution

The correct answer is option (D).

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