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Question
The percentage of the fine aggregate of fineness modulus 2.6 to be combined with coarse aggregate of fineness modulus 6.8 for obtaining the aggregates of fineness modulus 5.4, is:
A.
60%
B.
33.33%
C.
40%
D.
50%
Answer ( Option B)

33.33%

Solution

6.8x - 2.6x = 6.8 - 5.4

4.2x = 1.4

x = 1/3

x = 33.33%

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