今天给大家带来的每日一练，是来自ACCA考试模拟题：记得做完在下拉看答案哦~

　　【ACCA选择题】

　　第一题：The income elasticity of demand for a product is high.This means that:

　　A Sales will fall only slightly when incomes of households fall

　　B Sales will rise sharply when incomes of households rise

　　C The good is an inferior good

　　第一题：Using the point method,what is the price elasticity of demand of product X as price falls from its current price of$20 to$15?
　　第一题：B

　　Rationale:The income elasticity of demand measures the responsiveness of demand to changes in consumers'incomes.An'inferior'good has a negative income elasticity:as incomes fall,more is bought.

　　第一题：D

　　Rationale:Percentage change in quantity=50%.Percentage change in price=25%.