WAEC Economics Past Questions & Answers - Page 156

776.

If the price of goods X rises and the quantity demanded of goods Y increases then the two goods X and Y must be

A.

Inferior goods

B.

Substitutes

C.

Complements

D.

Free goods

Correct answer is B

No explanation has been provided for this answer.

777.

The demand for beans in bags is given by the function Q - 36 + 0.4P = 0.

Where P is price in naira and Q is quantity.

Find Q when P = 20 naira.

A.

12 bags

B.

24 bags

C.

28 bags

D.

30 bags

Correct answer is C

Q - 36 + 0.4P = 0

Q = 36 - 0.4(20)

36 - 8 =  28

778.

The lower the price of a commodity, the greater the quantity demanded. This is based on the assumption that the consumer's 

A.

Income is diminished

B.

Income remains the same

C.

Utility is diminished

D.

Population is high

Correct answer is B

No explanation has been provided for this answer.

779.

Given that TR is total revenue, then TRn -TR (n-1) can be used to find the

A.

Marginal revenue

B.

Marginal cost

C.

Average cost

D.

Average revenue

Correct answer is A

No explanation has been provided for this answer.

780.

Revenue is the

A.

Total profit made after sales

B.

Amount spent on purchase

C.

Amount of goods produced

D.

Total money realized from sales

Correct answer is D

No explanation has been provided for this answer.