Q. If X, Y and Z are the fineness modulli of coarse, fine and combined aggregates, the percentage (P) of fine aggregates to combined aggregates, is

• (A) p = [(z - x)/(z - y)] × 100
• (B) p = [(x - z)/(z - y)] × 100
• (C) p = [(x - z)/(z + y)] × 100
• (D) p = [(z + x)/(z - y)] × 100