Chapter 4, Problem 43SGR

To determine

To find: the number of books N read.

Answer to Problem 43SGR

N read 35 books.

Explanation of Solution

Given:

  $x+x+10=60$

Calculation:

The objective of the problem is to find the number of books N read.

Let x be the number of books M read.

So, $x+10$ be the number of books N read.

The required equation,

  $\begin{array}{l}x+x+10=60\\ 2x+10=60\end{array}$

Making similar terms together,

  $\begin{array}{l}2x=60-10\\ 2x=50\\ x=\frac{50}{2}\\ x=25\end{array}$

So, the number of books M read = 25.

The number of books N read:

  $\begin{array}{l}x+10\\ =25+10\\ =35\end{array}$

Hence,N read 35 books.

Conclusion:

Hence,N read 35 books.