If in a concrete mix the fineness modulus of coarse aggregate is 7.6., the fineness modulus of fine aggregate is 2.8 and the economic value of the fineness modulus of combined aggregate is 6.4 then the proportion of fine aggregate in coarse aggregate is

If in a concrete mix the fineness modulus of coarse aggregate is 7.6.,

1.	If in a concrete mix the fineness modulus of coarse aggregate is 7.6., the fineness modulus of fine aggregate is 2.8 and the economic value of the fineness modulus of combined aggregate is 6.4 then the proportion of fine aggregate in coarse aggregate is
A.	25%
B.	33.3%
C.	50%
D.	66.6%
Answer» C. 50%