The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for
obtaining the aggregates of F.M. 5.4, is
(A) 30 %
(B) 40 %
(C) 50 %
(D) 60 %
obtaining the aggregates of F.M. 5.4, is
(A) 30 %
(B) 40 %
(C) 50 %
(D) 60 %