The Demand Function for a Certain Commodity Is $p ( x ) = 4 - \frac { 1 } { 30 } x$

question 148

Multiple Choice

The demand function for a certain commodity is $p ( x ) = 4 - \frac { 1 } { 30 } x$ Find the consumer surplus when the sales level is 30.

• A)90
• B)45
• C)15
• D)70
• E)30
• F)60
• G)20
• H)80

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