JAMB Economics 1981 Question 42

Market for GARRI
Price per tin — Demand per week — Supply per week
N6 — 0 tin — 35 tins
N5 — 5 tines — 25 tins
N4 — 10 tins — 35 tins
N3 — 15 tins — 15 tins
N2 — 20 tins — 5 tins
N1 — 25 tins — 0 tin.
At a price of N5, the excess supply is

1. A.30 tins per week
2. B.45 tins per week
3. C.15 tins per week
4. D.20 tins per week
5. E.indeterminate.