Question

Roger wrote a novel 211 pages long. The introduction is 11 pages long, and the chapters average 10 pages in length. How many chapters are in Roger's novel if the book only consists of the introduction and the chapters?

Answer 1

First, substract the number of pages of the introduction from the total number of pages:

$211-11=200$

This is the number of pages that the chapters use in total.

Since each chapter has 10 pages, divide 200 by 10 to find the total number of chapters:

$\frac{200}{10}=20$

There is a total of 20 chapters on Roger's novel.