Solution:
Given:
In a day, it carries a full passenger load 53 times.
If all passengers were children, then the elevator carried a total of;
If all passengers were adults, then the elevator carried a total of;
Hence, to get how many more people the elevator will carry than if all passengers were adults, we get the difference in the two.
Therefore, the elevator will carry 53 more people than if all the passengers were adults.