
如圖所示,圖中有一根蚊香。354Please respect copyright.PENANAQ31dcr9tht
由點燃 到燃燒殆盡,是1小時(60分鐘)
請問,需要多少根蚊香,354Please respect copyright.PENANAh5tuWPeBfT
才能準確計算出45分鐘呢?354Please respect copyright.PENANAYybGfxzk56
(方法又是什麼呢?)
【附註】354Please respect copyright.PENANAaTShOVRJox
蚊香 不能切,也不能折唷~