text: assume we are dealing with\nvehicle gasoline\n1 m^3 =737.22 kg\n1000 kg= 1/0.73722 m^3\n{1000kg fresh water=1000m^3}\nassume barrel =40 gallons\n=40*4.545963 litres\n{1m^2=1000litres}\n\ntherefore,\n1000kg\n=10^3/(0.7322*40*4.545963)\n=7.510768695 barrels \n\ntherefore, 1 tonne of vehicle gasoline\nis approximately 7.5 barrels\n\ni hope that this helps