It would be Approximately 24.5
I believe it is East and West Germany because it has to do with the Berlin Wall which seperated Germany.
The Equator divides the south and the north pole so they cant be conjoined
Answer:
Barter system had many deficiencies such as
★Lack of double coincidence of wants
★Common measure of value
★Indivisiblity of commodities
★Difficulties of storing wealth
So we don't use barter system anymore