Re: [請問] 國二數學題
: 請問25題如何解?想半天只能算出價格差。
: 算到想翻臉了ˊˋ
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: Sent from JPTT on my Samsung SM-N900.
兩人收入一樣 則售價和數量成反比
設融 &達的售價比為a:b 則數量比為b:a ,
由題目得到a^2:b^2=27000:12000=9:4, a:b=3:2
相差臺數=200/(3+2)*(3-2)=40
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