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2008-2-17 06:30 PM vanessawong830
F.1 maths

A sum of money is divided into two portions in the ratio of 5:7.If the smaller portion is $1 300,find the amoutof the sum.

形式係要咁既:
                                Let x be the amount of the sum
                                  xxxxxx=xxxxx
                                    xxxx =xxxx
                        Ans:xxxxxxxxxxxxxxxxxxxxxx


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我唔可以做錯架
我會被我呀媽打嫁!!!

2008-2-17 06:59 PM 檸檬=]
Let x be the amount of the sum
(5/12)x=1300
    x=1300x(12/5)
          x=3120

ans:the amount of the sum is 3120

(5/12)姐係12份之5  姐係5over12
(12/5)姐係5份之12  姐係12over5


希望你唔洗比呀媽打啦:snC260H:

[[i] 本帖最後由 檸檬=] 於 2008-2-17 07:00 PM 編輯 [/i]]

2008-2-17 08:00 PM vanessawong830
實在太多謝你啦><":siG256P:

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