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Alternative P costs 1 million with benefits of 1.4 million; Q costs 1.5 million with benefits of 1.9 million, both as present worths. The incremental ratio is

  • A.1.27
  • B.1.40
  • C.0.50
  • D.1.00

Answer: D

Correct answer: 1.00

\[ \frac{\Delta B}{\Delta C} = \frac{1.9 - 1.4}{1.5 - 1.0} = \frac{0.5}{0.5} = 1.00. \] The extra half million buys exactly half a million of benefit, so the increment is on the margin: it neither adds nor destroys value, and the choice between P and Q must rest on considerations outside the arithmetic.

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