SOLUTION: A concrete mixture is made by mixing cement, sand and gravel, by volume, in the ratio 1:2:4. If 2 m cubed of gravel is used, how much cement and sand must be added?

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Question 777883: A concrete mixture is made by mixing cement, sand and gravel, by volume, in the ratio 1:2:4. If 2 m cubed of gravel is used, how much cement and sand must be added?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
The ratio is 1:2:4
If 2m^3 gravel is added.
then 0.5m^3 cement and 1m^3 sand
should be added.
(0.5:1:2)*2 = (1:2:4)
Hope this helps.
:-)