數學難題(百分數)

柳絮仙

我先P.6,這題MATHS唔識

Harpuia

問題：
There are 2 drinks.
Drink A contains 40% alcohol.
Drink B contains 65% alcohol.
In what ratio should we mix to make it become a drink of 50% alcohol?


oh~~~my god雞腸數....................

Apple798

我未學

耿鬼孔明

這題是中三考試常出的數(中二都有可能)分分鐘中五也會出的
所以呢d數要煲熟它(我就係呢題低分過人=.="唔抵)

抹茶可樂

大家呃夠了
鎖