Maths: Percentage error?
回答 (1)
2017-12-27 12:41 pm
✔ 最佳答案
set the actual speed is v km/h(194-v)/v<0.02 ---> 50(194-v)<v ---> 9700<51 v ---> 9700/51<v
(v-194)/v<0.02 ---> 50(v-194)<v ---> 49 v<9700 ---> v<9700/49
9700/51<v<9700/49
190.20<v<197.96 ...Ans
收錄日期: 2021-04-24 00:51:48
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20171227021340AA8mgQl