A pharmacist determines that the LWQ of a scale is 120mg. He needs to weigh out 40mg of a drug for a prescription. If the aliquot weight of 200mg of the mixture for his proportion contains the 40 mg that he needs, how much diluent is required to compound the mixture? [Do not include units; Round your answer to the nearest whole number]

The LWQ of a scale is 110mg with a sensitivity requirement of 6mg. What is the percent error of the scale? [Do not include units; Round your answer to the nearest tenth]

If a scale has a least weighable quantity of 130mg and the desired weight to be measured is 4mg for a given prescription, how much diluent (mg) will be needed to ensure the desired amount of drug is being weighed to have the least amount of waste? [Do not include units; Round your answer to the nearest whole number]

A scale in the pharmacy has a sensitivity requirement of 3mg and a percent error of 5%. What is the least weighable quantity for the scale? [Do not include units; Round your answer to the nearest whole number]