求谭艳 光明mp3百度云:Math!!!!!Math~~~~
来源:百度文库 编辑:查人人中国名人网 时间:2024/05/16 16:08:06
A secondhand book is sold $1.20, which is 2/3 of its original price. What was the original price?
1.2/(2/3)=1.8
So,the original price is $1.8
(1.2)*3/2=3.6/2=1.8
so,the answer is $1.8