A) The cross-price elasticity of demand is 1.3.
B) Based on the result, since the cross elasticity of demand against the price of tea is greater than 1, the cross elasticity of demand for coffee is elastic.
Cross elasticity refers to the percentage change in the demand quantity of a coffee, for example, due to the percentage change in the price of tea.
Old price of tea = Br. 10 per cup
New price of tea = Br. 15 per cup
Change in price = Br. 5 (Increase)
Percentage change in price = 0.50
Old demand for coffee = 3,000 cups
New demand for coffee = 5,000 cups
Change in demand = 2,000 (Increase)
Percentage change in demand = 0.666
Cross elasticity = Change in Demand/Change in Price
= 1.3 (0.67/0.5)
Thus, the demand for coffee is elastic relative to the change in the price of tea.
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