Chapter 3.6, Problem 15WE

To determine

Equation that come next.

Answer to Problem 15WE

  $1234\times 9+5=11111$

Explanation of Solution

Given:

The given equations are,

  $\begin{array}{l}1\times 9+2=11\\ 12\times 9+3=111\\ 123\times 9+4=1111\end{array}$

The first equation is $1\times 9+2=11$ , second equation is $12\times 9+3=111$ and third equation is $123\times 9+4=1111$ .

The pattern followed here is,

  $1\to 12\to 123\to 1234$

  $2\to 3\to 4\to 5$ and

  $11\to 111\to 1111\to 11111$

So, the next equation will be,

  $1234\times 9+5=11111$