Employees of a Vadodara firm were asked about tea and coffee. What percentage of the tea drinkers also drink coffee?

Tea drinkers $=45+15=60$, and 15 of them also drink coffee: $15÷60=25\%$. 15% reads the count as a percentage, 33⅓% divides by the 45 tea-only drinkers, and 50% divides by the coffee-only part.