## A science and technology book has 270 pages. Xiao Ming read one third of the whole book on the first day and five sixth of the first day on the second day?

1 / 3 times 5 / 6 plus 1 / 3 = 18 / 11 270 * 18 / 11 = 165 + 1 = 166

Xiao Ming read 20 / 100 of the whole book on the first day, 25 / 100 more on the second day than on the first day, and 12 pages on the third day, which is exactly half of the book

240 Pages

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