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Concrete is made by mixing screenings cement and sand in the ratio 3:1:15. How much sand would be needed to make 125 tonnes of concrete?
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Concrete is made by mixing screenings cement and sand in the ratio 3:1:15. How much sand would be needed to make 125 tonnes of concrete?

User Trudyann
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625 I think, 125/3 which is a decimal and then do 15 times that decimal, on my calculator I can copy and paste the decimal (cause it’s long one) and I got 625. The calculator app I use is called calculator + if you want to get it!
User Gmoon
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