Revenue functions from marginal revenue functions - class-XII

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Multiple Choice

The demand function if $p = 60 + 2D - 10D^2$, the rate of charge in price with respect to demand is ______

  1. $\dfrac{60}{D} + 2 - 10D$
  2. $2 - 20D$
  3. $2 - 40D$
  4. None of these
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