JAMB Economics Past Questions & Answers - Page 120

596.

From that table above, the price elasticity of supply is

A.

4

B.

25

C.

1

D.

2

Correct answer is C

From the diagram above, when price was N1, the quantity supplied was 60 and when the price rose to N2, the quantity supplied increased  to 120 units. That means price elasticity of supply is elastic. Meaning a change in price will lead to a change in the quantity the supplier is willing to supply.

price elasticity of supply = 2 - 1 = 1

597.

The percentage of working population in 2002 is?

A.

50%

B.

25%

C.

8%

D.

80%

Correct answer is D

The percentage of working population in 2002 = 

Working population 
 Total population

32 ÷ 40 x 100 = 80%

 

 

598.

What is the population growth rate in 2003?

A.

33.3%

B.

20.0%

C.

11.0%

D.

50%

Correct answer is D

Population growth rate = the difference between the previous year population and the current year population divided by the previous year

2002 population = 40,000
2003 population = 60,000

60,000 - 40,000 ÷ 40,000 x 100
20,000 ÷ 40,000 x 100 = 50%

599.

Determine the average product of the 4th unit of capital

A.

53

B.

86

C.

212

D.

213

Correct answer is A

 Average product is found by dividing total product by the quantity of the variable input.

The AP of the 4th unit of capital = 212 / 4 = 53

600.

If the contribution of the oil sector is N3.6 million, what is the contribution of the other sectors?

A.

N10.8 million

B.

N7.2 million

C.

N3.6 million

D.

N2.4 million

Correct answer is B

No explanation has been provided for this answer.