The Total solution for NCERT class 6-12
The total cost C (x)in Rupees associated with the production of x units of an itemis given by
Find the marginal cost when 17 units are produced.
Marginal cost is the rate of change of total cost withrespect to output.
When x = 17, MC = 0.021 (172) −0.006 (17) + 15
= 0.021(289) − 0.006(17) + 15
= 6.069 − 0.102 + 15
= 20.967
Hence, when 17 units are produced, the marginal cost isRs. 20.967.