居然数学题用英语出~太多元化了!A boy has finished feading 160 pages of a story book and he finds that there is 20% of the book left.How many pages are there in the book?

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居然数学题用英语出~太多元化了!A boy has finished feading 160 pages of a story book and he finds that there is 20% of the book left.How many pages are there in the book?
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居然数学题用英语出~太多元化了!A boy has finished feading 160 pages of a story book and he finds that there is 20% of the book left.How many pages are there in the book?
居然数学题用英语出~太多元化了!
A boy has finished feading 160 pages of a story book and he finds that there is 20% of the book left.How many pages are there in the book?

居然数学题用英语出~太多元化了!A boy has finished feading 160 pages of a story book and he finds that there is 20% of the book left.How many pages are there in the book?
160/0.8=200
共200页