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Tamil Nadu Board of Secondary EducationHSC Commerce Class 12

Calculate the producer’s surplus at x = 5 for the supply function p = 7 + x

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Question

Calculate the producer’s surplus at x = 5 for the supply function p = 7 + x

Sum
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Solution

The supply function p = 7 + x

When x = 5

⇒ p = 7 + 5 = 12

∴ x0 = 5 and p0 = 12

Producer’s surplus

P.S = `x_0"p"_0 - int_0^(x_0) "g"(x)  "d"x`

= `(5)(12) - int_0^5 (7 + x)  "d"x`

= `60 - [7x + x^2/2]_0^5`

= `60 - {7(5) + (5)^2/2 - (0)}`

= `60 - [35 + 25/2]`

= `60 - (35 + 12.5)`

= `60 - 47.5`

= 12.5

= `25/2`

∴ P.S = `25/2` units

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Application of Integration in Economics and Commerce
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Chapter 3: Integral Calculus – 2 - Exercise 3.3 [Page 75]

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Samacheer Kalvi Business Mathematics and Statistics [English] Class 12 TN Board
Chapter 3 Integral Calculus – 2
Exercise 3.3 | Q 5 | Page 75

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