標題:
急急急急急急急急急急....有英文數唔識
發問:
最佳解答:
Total fraction of the book read by Betty = 1/4 + 1/5 = 5/20 + 4/20 = 9/20 Therefore, fraction of the book left unread = 1 - 9/20 = 11/20 Let x be the total number of pages the book has From the given condition, x(11/20) = 33 x = 33 X 20/11 x = 60 So, there are totally 60 pages in the book.
其他解答:
急急急急急急急急急急....有英文數唔識
發問:
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Betty reads 1/4 and 1/5 of a storybook on Monday and Tuesday respectively. There are still 33 pages left. Finf the total number of pages the book has.最佳解答:
Total fraction of the book read by Betty = 1/4 + 1/5 = 5/20 + 4/20 = 9/20 Therefore, fraction of the book left unread = 1 - 9/20 = 11/20 Let x be the total number of pages the book has From the given condition, x(11/20) = 33 x = 33 X 20/11 x = 60 So, there are totally 60 pages in the book.
其他解答:
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