Thanks to @AlanMunn for the answers given in the question asked in the link.
Chapter number and chapter title in one line
What I want is:
CHAPTER ONE: the chapter name/title
and not
Chapter 1: The chapter name/title
I was able to do this
CHAPTER 1: the chapter name/title
I need to change "1" to "ONE" without affecting anything on the toc.
I used the following code
\usepackage{titletoc,fmtcount,titlesec}
\titleformat{\chapter}[hang]
{\normalfont\large\bfseries}{\MakeUppercase\chaptertitlename\ \thechapter:}{1em}{}
\titlespacing*{\chapter}{0pt}{0pt}{0pt}% this reduces the space between the chapter title and section
Please how do I go about it?