EduFarming
Your list · 0हिं

Type at least two letters. Press Esc to close.

↑↓ navigate↵ openTAB cycle filter

Rate of Change, Marginal Cost & Revenue · Question 47 of 79

Question 47

EasyOriginal question

The revenue from selling xx units is R(x)=50x−0.5x2R(x) = 50x - 0.5x^{2} rupees. What is the marginal revenue when 20 units are sold?

Options for question 47

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. Marginal revenue is the derivative of revenue: MR=R′(x)=50−xMR = R'(x) = 50 - x.

  2. R′(20)=30R'(20) = 30 rupees.

Worth noting

₹800 is the revenue from all 20 units, R(20)R(20).

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