A lorry has a mass of 3.2 tonnes and carries 1,450 kg of cargo. What is the combined mass in tonnes?
Answer and explanation
Correct answer: D. 4.65 tonnes
- Step 1: 1 tonne = 1,000 kg, so 1,450 kg = 1.45 tonnes. Step 2. 3.2 + 1.45 = 4.65 tonnes. Answer: 4.65 tonnes. Why not the others: 17.7 tonnes: This reads 1,450 kg as 14.5 tonnes. 3.345 tonnes: This reads 1,450 kg as 0.145 tonnes. 4,650 tonnes: This gives the value in kilograms but labels it tonnes.
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