弟有款是兄的~5分4~，妹有款是弟的~3分2~，如果妹有72元，問兄有款幾元？？
請問要點做??
方程式...唔知點樣做尼條算式??
2006-10-22 4:34 pm
回答 (3)
2006-10-22 7:01 pm
✔ 最佳答案
設兄有款y元y乘4/5乘2/3 = 72
y = 72/(4/5)/(2/3)
y = 135
因此兄有款135元
參考: 自己諗
2006-10-22 4:48 pm
let x be the money of brother.
72*2/3*4/5=x
x=72x3/2x5/4
x=135
~The money of brother is$135
2006-10-22 08:51:27 補充：
Sorry is 72/2*3/4*5=x
72*2/3*4/5=x
x=72x3/2x5/4
x=135
~The money of brother is$135
2006-10-22 08:51:27 補充：
Sorry is 72/2*3/4*5=x
參考: my
2006-10-22 4:38 pm
(72/3*2)/5*4=38.4
收錄日期: 2021-04-23 15:44:41
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061022000051KK00849