## A story book, Xiao Hong read half of the book on the first day, the next day read the remaining one-third, there are 48 pages left. How many pages are there in this book?

Let this book be x in total

1/2x+(1/2*1/3)x+48=x

3x+x+288=6x

2x=288

x=144

A: the book has 144 pages

Xiao Hong read a story book. On the first day, she read 30% of the total pages. On the second day, she read 10 pages, leaving 3 / 5 of the total pages?

Three fifths = 60%

1-60%-30%=1-0.6-0.3=0.1

1 = 100 (page)

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