The marginal cost function of a firm is, MC=6x+4. If the fixed cost is ₹100, then the total cost function is:

CA Foundation · Quantitative Aptitude · MTP · September 2026
The marginal cost function of a firm is, MC=6x+4. If the fixed cost is ₹100, then the total cost function is:
(A) A. C(x)=3x 2 +4x+100
(B) B. C(x)=6x 2 +4x+100
(C) C. C(x)=3x 2 +4x
(D) D. C(x)=6x 2 +4x

Suggested Answer and Working Notes:

Correct Answer: Option (A)

A. C(x)=3x 2 +4x+100

Topics: Part-A: Business Mathematics

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