Question

A consumer purchased 10 units of a commodity when its price was 5 per unit. He purchased
12 units of the commodity when its price fell to 4 per unit. What is the price elasticity of demand for
the commodity?
​

Answer 1

Answer:

Given: Q−10,Q

1

=12,P=5,P

1

=4

ΔP=(4−5)=−1,ΔQ=(12−10)=2

E

d

=(−1)

Q

P

∗

ΔP

ΔQ

=(−)

10

5

∗

−1

2

=1

E

d

=1 Unitary elastic demand

Explanation:

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