In a project, Mr.Tung 's daily wage was $100 more than Mr.Pang's. Aithough My. Tung worked 3 days less than Mr.Pang, both of them earned $3600. Findthe noof days Mt. Tung worked in the project.
Give me the calculate process. thx
Maths
2008-09-29 4:17 am
回答 (1)
2008-09-29 5:09 am
✔ 最佳答案
let the daily wage of mr tung be $xthen we have eqt:
(x-100)[(3600/x)+3] = 3600
3x - 360000/x -300 = 0
3x2-300x- 360000 = 0
x2-100x-120000 = 0
(x-400)(x+300) = 0
.'. x = 400 days//
2008-09-28 21:11:04 補充：
sor...
x= 400
the no. of days Mt. Tung worked in the project = 3600/400 = 9 days
收錄日期: 2021-04-13 16:06:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080928000051KK02429