Given the supply function P = 1/4(Qs+10) when P = N10; what is Qs?

A. 20
B. 15
C. 50
D. 30

Correct Answer:

Option A = 20

Explanation

P = 1/4(Qs+10) when P = N10, what is Qs?
when p = 10
Qs = 1/4 (10 + 10)
Qs = 1/4 (20)
Qs =20