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?

Algebra.Com
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)   (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.
:-)

RELATED QUESTIONS

The density and strength of concrete are determined by the ratio of cement and aggregate (answered by josgarithmetic)
A mixture of cement, sand and gravel is in the ratio 1-2-4. Determine amounts of each... (answered by stanbon)
The volume of a mixture of sand, gravel, and cement are in the ratio of 2 to 1 to 3.... (answered by stanbon)
An amount of cement, sand, and gravel, mixed in the ratio 1-2-4 (1 part cement, 2 parts... (answered by ikleyn)
A 3:4:1 concrete mix means that for every 2 parts of sand, 3 parts of gravel, and 1 part... (answered by )
A certain mixture for concrete is in the amounts of 1:2:4; 1 cu. ft. of cement. 2... (answered by ikleyn)
A mixture contains 10 kg of sand, 20kg of cement and 5 kg of gravel. Find the ratio of... (answered by josgarithmetic)
Cement, gravel, and sand are to be combined into a mixture in the ratio of 3:5:7... (answered by stanbon,jim_thompson5910)
the ratio of stone, sand an cement in a concrete mixture is 6:4:1 calculate the... (answered by richwmiller)