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Rate of Change, Marginal Cost & Revenue · Question 58 of 79

Question 58

MediumOriginal question

For R(x)=150x−5x2R(x) = 150x - 5x^{2} rupees, at what level of sales is the marginal revenue zero?

Options for question 58

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. MR=150−10xMR = 150 - 10x.

  2. 150−10x=0150 - 10x = 0 at x=15x = 15 units, where revenue is greatest.

Worth noting

30 units is where the revenue itself falls to zero.

Concept
Where marginal revenue is zero
Typical time
90 s
Your time
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The rule this testsMarginal revenue
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