PERCENTAGE SOLUTIONS 61 



metric, system is one of decimals, percentage solutions are very easily 

 obtained or calculated. It is a simple matter of multiplication and 

 may be worked out by multiplication. Thus to get a 5 per cent, 

 solution of any substance means 5 grams or 5 mils of the substance, 

 with enough solution to make 100 mils. Other quantities may be 

 figured in the same way. 



