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...Ncrtsolutions ncert solutions for class economics introductory macroeconomics chapter money and banking exercise of questions on page number q what is a barter system are its drawbacks answer that was used in ancient times to exchange goods other words this one commodity another before the monetary came into existence example if person having rice wants tea then he can with who has needs economy called c i e exchanged various as follows problem double coincidence implies two individuals should complement each take place above case second must need lack common unit value under there no measuring good terms purpose horse cannot be measured between difficulty wealth storage it very difficult store commodities future purposes perishable like grains milk meat could not stored therefore major batter standard deferred payments met pay back loans main functions how does overcome shortcomings medium acts facilitates through currency helps buying selling sell his use purchase choice solves value...