A lorry Starts with a load of 24 tonnes of goods from station A. it unloads 10 tonnes at station B and rest of goods at station C. It reaches back directly to station A after getting reloaded with 18 tonnes of goods at station C. The distance between A to B, B to C and then from C to A are 270 km, 150 km, and 325 km respectively. Compute 'Absolute tonne-km' and ' Commercial tonne-km'.