WAEC Economics 1991 Past Questions
Practice each question, then open it to see the full details.
This is a pie-chart showing the age distribution of population. The total population is 120 million. The official school-leaving age is 18 years while the official retiring age is 55 years.
(a) From the above information, calculate the:
(i) Population of children between 0 and 17 years.
(ii) population of old people (55 + years);
(iii) work-ing population (18 - 54 years) .
(b) what is the economic implication of the above population structure?

Discuss five contributions made by agriculture to the industrial development of Nigeria.
What is the median? State its merits and demerits.
With the aid of diagrams, explain what is meant by a change in:
(a) the quantity demanded;
(b) demand.
(a) Explain the term mobility of labour.
(b) Why may labour as a mobile factor of production be unwilling to move?
Explain the factors that affect the supply of labour in Nigeria.
(a) Define a market.
(b) Explain four characteristics of a perfect market.
Describe the factors that can affect the size of a country's population.
Complete the following cost schedules and answer the questions that follow.
| Output | Total Cost TC | Average cost AC | Marginal Cost |
| 1 | 18 | 8 | - |
| 2 | 14 | ? | - |
| 3 | ? | 6 | - |
| 4 | 20 | ? | - |
| 5 | ? | 6 | - |
| 6 | 46 | ? | - |
(a) At what output is AC at the minimum?
(b)At what output is MC at the minimum
(c) At what output does AC start increasing?
(d) At what output does MC start to be greater than AC
(e) What is the maximum output?