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题目
英语 in numbering the pages of book,555 digits were used .how many pages were there?
第2题 the symmetrical geek cross has a square piece,the exact size of one of its arms,cut out.can you cut the remains of the cross into four pieces and then rearrange the pieces to form a square?

提问时间:2020-11-28

答案
9+99*2+3x=555,x=116,therefore total pages = 9+99+116=224 pages.
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