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Mathematics, 04.11.2020 01:00 thelonewolf5020

1 cubic metre of concrete had a weight of 240 kg. 15% of the concrete is water. The rest of the ingredients of concrete are cement, sand and stone.
The weights of these ingredients are in the ratio 1:2:5
work out the weight of the cement, sand and stone in 1 cubic metre of concrete.

please please help i really need it done

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