WAEC Economics 2012 Objective — Question 10

Question 10 of 49 from the West African Examinations Council (WAEC) Economics 2012 Objective paper, with the correct answer and a full explanation.

A decrease in the demand for a product X resulted in a decrease in the demand for another product Y. The demand for X and Y is

A. derived
B. composite
C. jointCorrect
D. competitive

Explanation

For joint demand, two commodities are demanded together because they are used together e.g. handset and sim card. As the demand for one falls, the demand for the other will also fall.

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