In following question , a number series is given with one term missing. choose the correct alternative that will same pattern and fill in the blank space.1,6,15,45,66,91
In a world of many trading countries, the trade between two countries need not be balanced for the trade of each to be in global balance. Differing demands and productive capabilities among countries will cause a specific country to have trade deficits with some countries and surpluses with other countries.
Which of the following conclusions best summarizes the passage above ?
