The ratio of sand to gravel in a mixture is 7 : 8 while that between gravel and cement is 6 : 7. What is the ratio of sand to cement in the mixture?

The ratio of sand to gravel in a mixture is 7 : 8 while that between g

1.	The ratio of sand to gravel in a mixture is 7 : 8 while that between gravel and cement is 6 : 7. What is the ratio of sand to cement in the mixture?
A.	2.075
B.	0.29652777777778
C.	0.3375
D.	0.12777777777778
Answer» E.

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The ratio of sand to gravel in a mixture is 7 : 8 while that between gravel and cement is 6 : 7. What is the ratio of sand to cement in the mixture?

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