In a company 3/5 of people know shorthand 1/4th know typing and 1/5 know both. What fraction of people do not know both?

$In a company 3/5 of people know shorthand 1/4th know typing and 1/5 know both. What fraction of people do not know both?$

Ques:- In a company 3/5 of people know shorthand 1/4th know typing and 1/5 know both. What fraction of people do not know both?

2 5106