Answer: 50 percent
Explanation: Learning is about repeating a process and connecting novel information to knowledge you already have. Accessing information becomes easy when multiple pathways exist to that information. What this implies is that thinking about a particular thing more often builds a strong connection of that particular thing in your brain.
It is said that human beings retain 10 percent of information they read, 20 percent of the information they hear, 30 percent of information they see with their eyes, 50 percent of information they read/see and hear, 70 percent of what they say and write, and 90 percent of what they do. Hence the percentage of information retained when a person reads and listens to food safety information is 50%.