## Xiao Ming read 20% of the whole book on the first day, 25% more on the second day than on the first day, and 12 pages on the third day, which is exactly half of the whole book. How many pages does this book have

Let the number of pages of the book be x, and the equation is given

20％X+20％X（1+25％）X+12=1/2X+2

The solution is x = 200

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 more than 2 pages. How many pages in total?

The solution of 0.2x + 1.25 times 0.2x + 12 = 0.5x + 2 is x = 200

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 more pages, just over half of the whole book

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, I read another 12 pages, just over one and a half of the whole book. How many pages are there in this book

x*20%+x*20%*(1+25%)+12=x/2+2

x/5+x/4+10=x/2

x/20=10

x=200

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