The percentage of the aggregate of F.M. Z to be combined with coarse aggregate of F.M. X for obtaining the aggregates of F.M. Y, will be obtained by:
1
P = (X + Y / (Y + Z) × 100
2
P = (X + Y) / (Y - Z) × 100
3
P = (X - Y) / (Y + Z) × 100
4
P = (X - Y) / (Y - Z) × 100