Solution:
Countries with per capita income of US$ 12616 per annum and above in 2012, are called rich countries. The rich countries excluding Middle East countries and other small nations, are called developed countries.
The rich countries including Middle East countries and other small nations, are called developed countries.
Countries with per capita income of US$ 12616 per annum and above in 2012, are called rich countries. The rich countries excluding Middle East countries and other small nations, are called developed countries.