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Given the demand function P = 20 – 5Q, find the price elasticity of demand when price of the commodity is 5 Birr per unit. Mention if the demand is price elastic or inelastic at this point

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dagyalex123

Answer:

Explanation:

P=20 - 5Q

5 = 20 - 5Q

5 - 20 = 5Q

-15 = 5Q

Q = 3

E_d =\frac{dQ}{dP}.\frac{P}{Q}=-\frac{1}{5}×\frac{5}{3}=-0.333E

d

​

=

dP

dQ

​

.

Q

P

​

=−

5

1

​

×

3

5

​

=−0.333

The demand price is inelastic

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