This is the 360th most frequent Chinese word.
容易
Easy; simple.
Here '容易' means 'easy' and is used to describe the nature of the task (answering the question) as not difficult.
这个题目很容易回答。
This question is easy to answer.
In this sentence, '容易' indicates the ease with which the action (learning to swim) was completed.
他很容易就学会了游泳。
He easily learned how to swim.
Here, '容易' conveys the propensity of the subject (the food) to undergo spoilage as being low.