Mathematics, 30.11.2021 18:50 courtlyn8

Len makes some concrete by mixing cement, sand and gravel in the ratio 1:4:3. if he uses 8 bags of sand, how many bags of cement and gravel will he use?

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Len makes some concrete by mixing cement, sand and gravel in the ratio 1:4:3. if he uses 8 bags of s...

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