標題:
數學問題--百分數
發問:
數學測驗有50題，明明答對了35題，答對的題目比答錯的多百分之幾?? 急!!!
最佳解答:
(35-15)/15 * 100 % = 133%
其他解答:
[35-(50-15)] --------------- x100%= 50 (35-15) ----------- x100%= 50 20 -----x100%= 50 40%|||||35/50-(50-35)/50*100% =40%|||||35-(50-35)/50x100% =15/50x100% =0.3x100% =30%|||||35/50 - (50-35)/50 = (35-15)/50 =20/50 =2/5 = 40%
數學問題--百分數
發問:
數學測驗有50題，明明答對了35題，答對的題目比答錯的多百分之幾?? 急!!!
最佳解答:
(35-15)/15 * 100 % = 133%
其他解答:
[35-(50-15)] --------------- x100%= 50 (35-15) ----------- x100%= 50 20 -----x100%= 50 40%|||||35/50-(50-35)/50*100% =40%|||||35-(50-35)/50x100% =15/50x100% =0.3x100% =30%|||||35/50 - (50-35)/50 = (35-15)/50 =20/50 =2/5 = 40%
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