JAMB Economics Past Questions & Answers - Page 96

476.

The median of an odd-numbered set of scores is the

A.

Middle value in the set

B.

Highest value in the set

C.

Arithmetic means of the set

D.

Most frequent occuring score

Correct answer is A

The median is the middle number in a sorted, ascending or descending, list of numbers.

477.

Individual markets differ from each other according to

A.

The degree of competition

B.

The volume of trade

C.

The number of buyers

D.

It's composition

Correct answer is A

No explanation has been provided for this answer.

478.

One of the factors affecting the supply of manufactured goods is

A.

Weather

B.

Technology

C.

Consumer tastes

D.

Availability of inputs

Correct answer is B

The following are Some of the factors that influence the supply of a product 

  • i. Price
  • ii. Cost of production
  • iii. Natural conditions
  • iv. Technology
  • v. Transport conditions
  • vi. Factor prices and their availability
  • vii. Government's policies
  • viii. Prices of related goods

479.

Use the information below to answer this question.

Given that Q d = 20 - 4P and Qs = 6P + 12

If price is increased to N3, how much is the excess supply?

A.

30

B.

22

C.

12

D.

8

Correct answer is B

Given that Qd = 20 - 4P and Qs = 6P + 12
To solve for excess supply, we will have to substitute '3p'' into both sides of the equation. Hence we have;

Qd = 20 - 4(3) and Qs = 6(3) + 12
20 - 12 = 8
18 + 12 = 30

30 - 8 = 22

480.

Given that Q d = 20 - 4P and Q = 6P + 12

Determine the equilibrium quantity

A.

14.2

B.

16.8

C.

20.8

D.

30.2

Correct answer is B

Q d = 20 - 4P and Q = 6P + 12
Qd = Qs

20 - 4p = 6p + 12
20 - 12 = 8
6p + 4p = 10p
p = 8/10 = 0.8
Substitute '0.8' in Qd equation. Hence we will have

Qd = 20 - 4 (0.8)
Qd = 20 - 3.2 = 16.8