Question

问SAT2010，1月的一道数学题？求详细解析。谢谢

when printing a line of text , a printer begins 1 inch from the left edge of the paper and ends 5/4 inches from the right edge. if the paper is 17/2 inches wide , how many inches can be used for printing each line? 答案是25/4

Answer 1

翻译一下就是一个打印机从左边1英尺的地方开始打印，打到右边5/4英尺的地方为止，纸张宽度是17/2英尺，问打印的有多长。
就是17/2-1-5/4=25/4英尺