头大……此题算完居然得负数难道是我没理解题？

faytastic · 发表于 2011-3-1 19:13:36

From Leland’s gross pay of p dollars last week, t percent was deducted for taxes and then s dollars was deducted for savings. What amount of Leland’s gross pay last week remained after these two deductions?
(1) p - s = 244
(2) pt = 7,552

Wangyq0902 · 发表于 2011-3-1 19:37:16

根据题目列式
(1-t%)*p-s
=(p-s）-pt%
=244-75.52
=168.48

faytastic · 发表于 2011-3-2 15:06:56

不是7552吗，怎么又变成75.52了？

tctctctc · 发表于 2011-3-2 16:23:42

t percent =0.0t (如78percent=0.78 )

头大……此题算完居然得负数难道是我没理解题？

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