SO GDP per capita is the total GDP divided by the number of people in the country.
In this example, you are asked for this number in US dollars. We need to first convert Koruny GPD into US dollars
2,000,000,000 / 20 = 100,000,000
Now we need to divide that by the number of people (20,000,000)
100,000,000 / 20,000,000 = $5
The per capita GDP in Czech Republic is $5
UNLESS that is truly 2,000 billion (2,000,000,000,000) which seems like an odd way to write that number. HOWEVER, if that is the real number the answer is $5,000