A workshop's cost of making $x$ chairs is $C(x) = 0.02x^{2} + 8x + 300$ rupees. What is the marginal cost when 50 chairs are made?

₹8Correct answerYour answer₹9Correct answerYour answer₹10Correct answerYour answer₹750Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

Worth noting

₹750 is $C(50)$ , the cost itself.

Ten questions from Chain Rule, Log Differentiation & Rate of Change, at your own pace.

Ten questions from Chain Rule, Log Differentiation & Rate of Change, at your own pace.

A workshop's cost of making xxx chairs is C(x)=0.02x2+8x+300C(x) = 0.02x^{2} + 8x + 300C(x)=0.02x2+8x+300 rupees. What is the marginal cost when 50 chairs are made?