I have been trying to solve a problem. I need 30 gm Calcium and 15 gm Phosphorous in total. But i have Anhydrous Calcium Phosphate ( 29.16% Calcium as it is and 22.53% Phosphorous as it is. Also i have Calcium Carbonate ( 40% Calcium as it) . Now what will be the amount of Calcium Hydrogen Phosphate and Calcium Carbonate where i Can get total 30 gm Calcium and 15 gm Phosphorous?