Mathematics, 27.02.2021 07:00 brittanydeanlen

Ratio And Proportion If 8 engines consume 12000 kgs. of coal when each running 10
hours per day, how much coal is required for 7 engines out
which 5 are running 12 hours a day and the rest 6 hours a day?

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Ratio And Proportion If 8 engines consume 12000 kgs. of coal when each running 10
hours per da...

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