The author, Madhusudan Sohani, is a master’s degree holder in Physics and Business Management from India. He has also studied Computer Management and Operations Research. A life member of the All India Management Association (www.aima-ind.org), he worked for a non banking finance company from 1977 to 2003, and has a concurrent teaching experience of over thirty two years from 1985 to 2017. He is an honorary trainer for forty two years with an NGO for the youth. He is also a corporate trainer in field of personal investment and retirement planning. As a contributor to educational videos on www.youtube.com, several of his educational videos on operations research are available for public viewing.