NO.PZ201806200500006801
问题如下：
1. Which of the companies had the highest number of days of payable for the year 2016?
选项：
A.Company Y.
B.Company Z.
C.Company X.
解释：
B is correct.
NO. of days payble=365/payble turnover
Company X: 365/(7/3.1)=161.64
Company Y: 365/(5.6/1.2)=78.21
Company Z: 365/(4.5/2.1)=170.33
这题问的不是应付账款天数最长的么，那应该是C？
