Q: Calculate the proportion (in percentage) of the aggregate in combined aggregate so that the fineness modulus of the combined aggregate becomes 6.4. The fineness modulus of coarse aggregate and fine aggregate in the concrete mix is 7.6 and 2.8 respectively.
A.
20
B.
33.33
C.
35
D.
66.6
Correct Answer:
Option B -
Explanations:
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