2007 - JAMB Economics Past Questions and Answers - page 4

31
The labour force of a country best describes
A
the number of people in paid employment
B
the number of people receiving pension
C
people within the retirement age
D
people within the working age
correct option: d
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32
The diagram above shows a firm operating under conditions of monopolistic competition. The curve W represents its
A
marginal cost
B
average cost
C
average revenue
D
marginal revenue
correct option: c
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33
The maximum number of workers that should be hired is
A
2
B
3
C
4
D
5
correct option: c
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34
What is the marginal productivity when the number of workers is increased from 2 to 3?
A
8kg
B
20kg
C
60kg
D
180kg
correct option: a
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35
The table shows the wage distribution of workers.Calculate the mean wage
A
N7.40
B
N4.00
C
N10.00
D
N14.80
correct option: a
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36
What is the median wage?
A
N8.00
B
N 5.00
C
N11.00
D
N6.50
correct option: d
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37
The price per unit of a commodity to a buyer is the same as the
A
Normal profit of the seller
B
Average revenue of the seller
C
Marginal cost of the commodity
D
Marginal revenue of the seller
correct option: b
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38
When a firm's average revenue curve is downward-slopping , it's price elasticity of demand will be
A
Zero
B
Greater than one
C
One
D
Between zero and infinity
correct option: c
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39
A firm incurs short-run costs when
A
It cannot increase prices
B
Operation is at its later stages
C
Operation is at its early stages
D
Some inputs cannot be varied
correct option: d
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40
An increase in the marginal cost of production causes
A
A downward movement along the supply curve
B
A leftward shift of the supply curve
C
A rightward shift of the supply curve
D
An upward movement along the supply curve
correct option: d
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