Chapter 4, Problem 16CCSR

To determine

To calculate: Fifth number using the given information about the pattern.

Answer to Problem 16CCSR

Fifth number is 17

Explanation of Solution

Given information: The pattern is 1 less than twice the previous number. First number is 2.

Calculation:

First number is 2. Second number is 1 less than twice the previous number

  $\begin{array}{l}2(previous\_number)-1\\ 2(2)-1=3\end{array}$

Do the same to get the next number

  $\begin{array}{l}2(2)-1=3\\ 2(3)-1=5\\ 2(5)-1=9\\ 2(9)-1=17\end{array}$

Fifth number is 17