The type of demand that exist between torchlight and battery is

  • A competitive demand
  • B complemetary demand
  • C composite demand
  • D joint demand
waec 2009economics

The correct answer is D. joint demand

Joint demand occurs when the demand for one product is directly linked to the demand for another. This means the two goods need to work together to provide a benefit for the consumer and one cannot work without the other. E.g car and petrol, torch and batteries.

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