標題:
發問:
Can somebody help me to translate this maths Q into chinese, The digits used to number all the pages of a book were counted. If the number of digits used was 216, find the number of pages in the book. I just want the TRANSLATION, no need to count for me, thx a lot! 更新: re questions: 唔係好明...如果係這樣....點計呀=.=??
最佳解答:
一本書所有頁數的數位數目總和係216 e.g.第59頁的有兩個數位,數位數目係2 第1-9頁的數位數目係1 第10-99頁的數位數目係2 第100-999頁的數位數目係3 設該書有x頁 如果該書有99頁, 數位數目總和=9(1)+(90)(2)=189 所以x>99 189+(x-99)(3)=216 (x-99)*3=27 x=108 所以該書有108頁
其他解答:
我唔知譯得好唔好@@ 應該係:呢d數字用於計算一本書總共有幾多頁 如果d數字是216,咁本書總共有幾頁? 2007-04-22 19:59:40 補充： 下面果個譯得好好多@@
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Maths Q,not difficult!發問:
Can somebody help me to translate this maths Q into chinese, The digits used to number all the pages of a book were counted. If the number of digits used was 216, find the number of pages in the book. I just want the TRANSLATION, no need to count for me, thx a lot! 更新: re questions: 唔係好明...如果係這樣....點計呀=.=??
最佳解答:
一本書所有頁數的數位數目總和係216 e.g.第59頁的有兩個數位,數位數目係2 第1-9頁的數位數目係1 第10-99頁的數位數目係2 第100-999頁的數位數目係3 設該書有x頁 如果該書有99頁, 數位數目總和=9(1)+(90)(2)=189 所以x>99 189+(x-99)(3)=216 (x-99)*3=27 x=108 所以該書有108頁
其他解答:
我唔知譯得好唔好@@ 應該係:呢d數字用於計算一本書總共有幾多頁 如果d數字是216,咁本書總共有幾頁? 2007-04-22 19:59:40 補充： 下面果個譯得好好多@@
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