David read 1/5 of a book on the first day. On the second day, he read 75% of the remaining pages. He had 75 pages left to read. How many pages were there in the book?(help me in 5 minutes please)

MaiaMitchell
Oct 3, 2015

#1**+5 **

On the first day, he read 1/5 of the book, so the remaning is 4/5.

On the second day, he read 75% from the remaning (4/5), so 0.75*4/5 = 3/5.

so now he read 1/5 + 3/5 = 4/5 of the book.

the remaning is 1/5, and the question say that he had 75 pages left, so 1/5 of the book = 75 pages

and now you can solve this as an eqation

1/5x = 75

x= 375

so the book contain 375 pages .

hope this is helpful

xvxvxv
Oct 3, 2015