Question

C08https://www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-liJQhiJODya094wj2gIJSklb9ag PtGFIZ2D9M= Initial Knowledge CheckpagesA book has 13 chapters. The mean length of the chapters is 42 pages. How many total pages are there in the 13 chapters?

Answer 1

Number of chapters: 13

Mean length of each chapter: 42

From the definition of the mean:

$\begin{gathered} \text{ Mean }=\frac{\text{ Total number of pages}}{\text{ Number of chapters}} \\ \\ \Rightarrow\text{ Total number of pages }=\text{ Mean}\cdot\text{ Number of chapters} \end{gathered}$

Then, using the values of the mean and the number of chapters:

$\text{ Total number of pages }=42\cdot13=546$

Answer: 546 pages