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A truck starts with carrying 40 tonnes from station X to station Y. It unloads 20 tonnes at station Y and carries 20 tonnes to station Z. From station Z to Station X, it carries 30 tonnes. The distance between station X and Y, Y and Z and from Z to X is 15 km, 20 km and 30 km respectively. Calculate absolute and commercial tonne-km. |
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Answer» Absolute tonne-km = 40 X 15 + 20 X 20 + 30 X 30 = 600 + 400 + 900 = 1900 tonne-km Commercial tonne-km = Average tonnes X Total distance traveled = (40+20+30)/3 X 65 = 1950 tonne-km |
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