EduFarming
Your list · 0हिं

Type at least two letters. Press Esc to close.

↑↓ navigate↵ openTAB cycle filter

Rate of Change, Marginal Cost & Revenue · Question 49 of 79

Question 49

EasyOriginal question

The revenue from selling xx units is R(x)=80x−2x2R(x) = 80x - 2x^{2} rupees. What is the marginal revenue when 10 units are sold?

Options for question 49

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. MR=R′(x)=80−4xMR = R'(x) = 80 - 4x.

  2. At x=10x = 10: 80−40=4080 - 40 = 40 rupees.

Worth noting

₹60 is the average revenue, the price, 80−2x80 - 2x.

Concept
Marginal revenue at a level of sales
Typical time
60 s
Your time
—
The rule this testsMarginal revenue
Practise this chapter →

Ten questions from Rate of Change, Marginal Cost & Revenue, at your own pace.

Practise this chapter →

Ten questions from Rate of Change, Marginal Cost & Revenue, at your own pace.

Practise this chapterAll 79 questions in Rate of Change, Marginal Cost & RevenueRevise the notes for Rate of Change, Marginal Cost & Revenue