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Calculate the elasticity of demand for the demand schedule by using differential calculus method P = 60 − 0.2Q where price is zero, ₹20, ₹40.

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प्रश्न

Calculate the elasticity of demand for the demand schedule by using differential calculus method P = 60 − 0.2Q where the price is

  1. zero,
  2. ₹20,
  3. ₹40.
बेरीज
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उत्तर

P = 60 – 0.2 Q
0.2 Q = 60 – P
(0.2 Q) 10 = (60 – p) 10
2 Q = 600 – 10p
Q = 300 – 5p
Given demand function Q = 300 – 5p

  1. If P = 0 then Q = 300 – 5 (0)
    = 300
    `"dp"/"dp"` = 300 - 5p
    = 0 - 5
    `"dp"/"dp"` = - 5
    ed = `"p"/"p" "(dq)"/"(dp)"`
    = `0/300` (-5)
    ed = 0
  2. If p = 20 then Q = 300 = 5 (20)
    = 200
    ed = `20/200` (-5)
    = - `100/200`
    ed = - 0.5
  3. If = 40 then Q = 300 – 5 (40)
    = 300 – 200
    Q = 100
    ed = `"p"/"q""(dq)"/"(dp)"`
    ed = - `200/100`
    ed = - 2
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पाठ 12: Mathematical Methods for Economics - Model Questions - Part D [पृष्ठ २७३]

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सामाचीर कलवी Economics [English] Class 11 TN Board
पाठ 12 Mathematical Methods for Economics
Model Questions - Part D | Q 2 | पृष्ठ २७३

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