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I don't know how to do this question, help!!

I don't know how to do this question, help!!-example-1
User Loudiyimo
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1 Answer

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60-45 = 15 square meters
3.5 - 2.75 = 0.75 hours

0.75 hours / 15 meters = 0.05 hours per meter




User ABHAY JOHRI
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