Explanation:

The disadvantages of barter system were Goods were limited, Need for Double Coincidence of wants, Difficulty of Division and Sub - division of Goods, Difficulty in calculating the value of goods, Difficulty in the case of services and Difficulty in Strong Value.
In barter system the goods were limited. Barter system was lead only to lower level development.
Barter system was good when needs were limited. Needs of man were increased but the supply of goods were not enough to satisfy man’s needs.
Needs differentiate from man to man. If either parties get what they need then it is double coincidence. If not it is a trouble as they don’t get what they need.
In the barter system it is difficult to divide and sub-divide goods.Posibility of exchange his good for only one good not for two or more.