方程式...唔知點樣做尼條算式??

2006-10-22 4:34 pm
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??

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
參考: my
2006-10-22 4:38 pm
(72/3*2)/5*4=38.4


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