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Economics questions and answers

Economics Questions and Answers

Economics questions and answers to help you prepare for JAMB, WAEC, NECO, Post UTME and job aptitude tests or interviews.

71.

Calculate the equilibrium level of national income (Y) where Y = C + I + G; C = 100 + 0.75Y; I = 50; G = 200

A.

2000

B.

100

C.

1500

D.

1400

Correct answer is D

y = a+i+G1b



where b = 0.75
 

= 100+50+2001075


= 3500.25



= 1400

Alternatively:
Y = C + I + G
Y = 100 + 0.75Y + 50 + 200
Y - 0.75Y = 350
Y( 1 - 0.75) = 350
 

= 3500.25


Y = 1400

 

72.

From the graph above, the consumer is at equilibrium at point

A.

K

B.

I

C.

M

D.

J

Correct answer is A

The consumer is at equilibrium is at point k where the slope of the indifference curve is tangential to the budget line.

73.

All of the following describes conditions necessary for existence of a perfect market EXCEPT

A.

Lack of homogeneity of goods

B.

Perfect knowledge

C.

Large buyers and sellers

D.

Portability of goods

Correct answer is A

Lack of homogeneity of goods is not a characteristics or features of a perfect market. The features/ characteristics are: perfect knowledge about the market, there is free entry and exit, there are large number of buyers and sellers, the goods are portable and homogeneous, there is no preferential treatment etc

74.

If the supply curve of labour market is given as S = 4L + 8. What is L when s = 20?

A.

2

B.

4

C.

5

D.

3

Correct answer is D

The supply curve of labour market is given as S = 4L + 8. To find the value of L when S = 20, we substitute S = 20 in the equation and solve for L. This gives us L = 3.

75.

The quantity of commodity a consumer is willing and able to buy at a particular time is called

A.

Supply

B.

Wish

C.

Demand

D.

Desire

Correct answer is C

Demand for a commodity is its quantity which consumers are willing and able to buy at various prices during a given period of time.