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12-01-2017
Mathematics

Answered

Concrete is a mixture of cement, sand, and gravel. The Masons will purchase a cement, sand, and gravel mixture in a ratio of 1:2:3. How many pounds of each material are needed for 60 lb of concrete mix?

Verified Answer :

briannadale briannadale

12-01-2017

10 pounds of cement, 20 pounds of sand, 30 pounds of gravel. 10:20:30 = 1:2:3
10 + 20 + 30 = 60

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