As there are different ways to complete a task, there can be several good and helpful approaches answered on duplicate questions.
I suggest a feature to add a section on
Duplicate Question like
Similar Question Accepted answers, so it would provide multiple tested and correct approaches on a single page. Usually duplicate question has links of other questions but have to visit individually each question.
Here I tried to create a rough mock-up for feature:
As a question get closed as Duplicated:
Now on Answer List show a section:
On clicking this section. All the accepted answers(if exist)of the question mentioned as Possible Duplicate shown:
It would be really helpful section. Any suggestions?