Define GDP: Define GDP per Capita:
How does a country's GDP per capita impact its
standard of living?
Which SE Asian country has the lowest GDP per
capita? Who makes the economic decisions in this
country?
Which SE Asian country has the highest GDP per
capita? What can you infer about this country's
standard of living when compared to the standard of
living in the United States? What does this say about
the standard of living of SE Asia as a whole region?

I agree with your answers:
1. Did the solution work? - When you are doing an experiment, or each time you are trying to solve something, obviously you want to reach the correct answer and finish what you've started properly. If your solution didn't work, it means it was the wrong solution and you have to start all over again and reach a better solution.

2. What went right or wrong? - If your solution was good, you would still want to understand what it was you did that resulted in a proper solution. On the other hand, you want to understand what went wrong and why you got the wrong answer/solution so that you can recreate the experiment and change the wrong variable so as to reach the correct solution.