Given the supply function S1= P-11,S2 = 2P-10,S3= 3P-9,find the market supply schedule and market supply curve?

The following is the supply schedule.

 

Price

(Rs)

Quantity Supplied by Firm1

(S1)

Quantity Supplied by Firm2

(S2)

Quantity Supplied by Firm3

(S3)

Market Supply

(Ms)

15

(15 – 11) = 4

(2×15) – 10 = 20

(3×15) – 9 = 36

4+20+36 = 60

20

(20 – 11) = 9

(2×20) – 10 = 30

(3×20) – 9 = 51

9+30+51 = 90

25

(25 – 11) = 14

(2×25) – 10 = 40

(3×25) – 9 = 66

14+40+66 = 120

 

The following is the market supply curve. 

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