The last page of a book is numbered 764. The book is 3.0 cm thick. What is the average thickness of a sheet of paper in the book, in centimeters?
A) 0.0039
B) 0.072
C) 0.0078
D) 254.7
E) 127.3

Question

Quizplus · Accepted Answer

The book has 764 pages, which means there are 382 sheets of paper (since each sheet has two pages). The thickness of the book is 3.0 cm, so the average thickness of a sheet is 3.0 cm / 382 sheets = 0.00785 cm, which rounds to 0.0078 cm.

The Last Page of a Book Is Numbered 764