Five apples and three bananas cost $2.47.If the price of apples and bananas was exchanged,the same amount of fruit would cost $3.13.How
much would six apples and six bananas cost?
5个苹果和3个香蕉花费2.47美元,如果苹果和香蕉的价格换一下,同样数目的水果将会花费3.13美元,请问,6个苹果和6个香蕉要花多少钱?
5个苹果和3个香蕉=2.47
5个香蕉和3个苹果=3.13
相加,8个苹果和8个香蕉=5.6,所以,1个苹果和1个香蕉=0.7
6个苹果和6个香蕉=4.2美元