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Calculate consumer’s surplus if the demand function p = 50 – 2x and x = 20 - Business Mathematics and Statistics

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प्रश्न

Calculate consumer’s surplus if the demand function p = 50 – 2x and x = 20

बेरीज

उत्तर

Demand function p = 50 – 2x and x = 20

When x = 2

p = 50 – 2(20)

p = 50 – 40 = 10

∴ p0 = 10

CS = `int _0^x` (demand function) dx – (Price × quantity demanded)

= `int _0^20` (50 – 2x) dx – (10 × 20)

= `[50x - 2(x^2/x)]_0^20 - 200`

= `[50x - x^2]_0^20 - 200`

= {50(20) – (20)2 – [0]} – 200

= (1000 – 400) – 200

= 600 – 200

∴ C.S = 400 units

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Application of Integration in Economics and Commerce
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पाठ 3: Integral Calculus – 2 - Exercise 3.3 [पृष्ठ ७५]

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सामाचीर कलवी Business Mathematics and Statistics [English] Class 12 TN Board
पाठ 3 Integral Calculus – 2
Exercise 3.3 | Q 1 | पृष्ठ ७५

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