多莉仔 wrote: monkey wrote: 170W x 24Hours x 30Days = 12240w 每個月 12.3Kw 度電 以$1元1度電(1 Kw )計都係13元姐 我諗你計錯數. 170W x 24Hours x 30Days = 122400w 每個月 123Kw 度電 以$1元1度電(1 Kw )計係130元 我唔記得話比方兄聽... 我數學科係唔合格
monkey wrote: 170W x 24Hours x 30Days = 12240w 每個月 12.3Kw 度電 以$1元1度電(1 Kw )計都係13元姐 我諗你計錯數. 170W x 24Hours x 30Days = 122400w 每個月 123Kw 度電 以$1元1度電(1 Kw )計係130元
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