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Mathematics, 20.04.2020 16:10 mathhelper22

Shaun needs to make mortar for brick-laying. It is made in the ratio 7:3 of sand to cement.

If 210 kg of sand is used, how much cement is needed?

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Shaun needs to make mortar for brick-laying. It is made in the ratio 7:3 of sand to cement.

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