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A lorry was loaded with 150 cartons of cooking fat and 120 bales of flour. Each carton of cooking fat contained twelve 2 kg tins. The mass of an empty carton was 500grams. Each bale of flour contained twelve 2 kg packets. What was the total load in tonnes?
A. 6.480
B. 6.555
C. 6.615
D. 6.556