Linda read 216 pages of a book. This is 2/3 of the book. What is the number of pages in the book?

A) 144 pages

B) 324 pages

C) 360 pages

D) 648 pages

Imagine a pie cut into 3 pieces

2 of the pieces has 216 calories

then for 1 piece it is 216/2 = 108

So total calories for the entire pie is 108 * 3 = 324

So there are 324 pages