1.15 tonnes of timber was milled to produce 843 kg of wooden planks.What was the percentage of timber lost in the milling process?Answer correct to the nearest whole percentage.
Question
1.15 tonnes of timber was milled to produce 843 kg of wooden planks.What was the percentage of timber lost in the milling process?Answer correct to the nearest whole percentage.
Solution
First, we need to convert the weight of the timber from tonnes to kilograms because the weight of the wooden planks is given in kilograms. We know that 1 tonne is equal to 1000 kilograms. So, 1.15 tonnes is equal to 1.15 * 1000 = 1150 kilograms.
Next, we find the weight of the timber lost in the milling process. This is the initial weight of the timber minus the weight of the wooden planks produced. So, the weight of the timber lost is 1150 kg - 843 kg = 307 kg.
To find the percentage of the timber lost, we divide the weight of the timber lost by the initial weight of the timber and then multiply by 100. So, the percentage of the timber lost is (307 kg / 1150 kg) * 100 = 26.7%.
Rounding to the nearest whole percentage, the percentage of timber lost in the milling process is 27%.
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