JAMB Economics 1981 Question 7

Market schedules for milk
Price per tin — Quantity demanded (tins) — Quantity supplied (tins)
8k — 25,000 — 7,500
10k — 23,000 — 9,000
13k — 20,000 — 11,500
15k — 18,000 — 13,000
18k — 15,000 — 15,000
20k — 13,000 — 17,500
23k — 10,000 — 21,000
25k — 8,000 — 24,000
From the above market demand and supply schedules for milk, we can say that equilibrium price and quantity are

1. A.15k; 13,000
2. B.20k; 17,500
3. C.13k; 20,000
4. D.18k; 18,000
5. E.18k; 15,000.