Laya finished 2/3 of a book. She calculated that she finished 50 more pages than she has yet to read. How long is her book?
Select.
A) A)150
B) B)180
C) C)130
D) D)90
E) E)210
Let x be the total number of pages in the book, then she finished 2/3*x pages.   Then she has x−2/3*x=1/3*x pages left.   2/3*x−1/3*x=50   1/3*x=50   x=150   So the book is 150 pages long.   150nswer is 150.
<result>A</result>
Laya finished 2/3 of a book. She calculated that she finished 50 more pages than she has yet to read. How long is her book?