During a quality control test, The Nail Place found that 10 nail guns were defective. This amount was 0.5 $\%$ of the nail guns tested.
a) How many nail guns were tested?
b) How many nail guns tested were not defective?

Question

During a quality control test, The Nail Place found that 10 nail guns were defective. This amount was 0.5 $\%$ of the nail guns tested. 
a) How many nail guns were tested?
b) How many nail guns tested were not defective?

Quizplus · Accepted Answer

a) To find the total number of nail guns tested, divide the number of defective nail guns by the percentage they represent: $10 = 0.5\% \times \text{Total}$, so $\text{Total} = 10 / 0.005 = 2000$.b) To find the number of non-defective nail guns, subtract the number of defective ones from the total: $2000 - 10 = 1990$.

During a Quality Control Test, the Nail Place Found That %\%%

During a Quality Control Test, the Nail Place Found That $\%$