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
NEXT: Xiao Ming read a book. On the first day, he read 20% of the whole book. On the second day, he read 25% more than on the first day. On the third day, he read 12 pages, which is exactly half of the whole book