A small hamburger is just 2.5 yuan for 4 yuan.I buy three small hamburgers and I pay ________.

问题描述:

A small hamburger is just 2.5 yuan for 4 yuan.I buy three small hamburgers and I pay ________.
7.5 yuan
12 yuan
15 yuan
18 yuan

选择第一个为什么呢?原句是什么意思?一个汉堡现在只需原价四元种的2.5元,也就是说现在2.5元一个汉堡。2.5*3=7.5ps:满意就采纳吧