What does it take to make one tonne of steel?

10 tonnes of coal, 4 tonnes of iron ore and 1 tonne of limestone

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8 tonnes of coal, 5 tonnes of iron ore and 1 tonne of limestone

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8 tonnes of coal, with 4 tonnes of iron ore and 1 tonne of limestone

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8 tonnes of coal, 4 tonnes of iron ore and 2 tonne of limestone

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Solution

The correct option is C 8 tonnes of coal, with 4 tonnes of iron ore and 1 tonne of limestone
It takes 8 tonnes of coal, with 4 tonnes of iron ore and 1 tonne of limestone to make just 1 tonne of steel.

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