Answers

2016-01-25T21:01:53+05:30
IT IS CALLED A "DOUBLE COINCIDENCE" of wants BETWEEN TWO PARTIES
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2016-01-25T22:52:35+05:30
It is called Double Coincidence of Wants and because of it, every individual object doesnt have individual value which could lead to huge loss. example if a gold smith exchanges a truck of gold with a truck if bricks he would get a huge loss.
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