Mass of cat = 10 lb
1 lb = 0.454 kg
So mass of cat is 4.54 kg
Number of tablets given to cat
[tex]N = 3\frac{1}{2}[/tex]
Each tablet has 6 mg of drug
Total drug given to cat
[tex]Drug = 3\frac{1}{2} * 6mg[/tex]
[tex]Drug = 21 mg[/tex]
Now dose given to cat in mg/kg form
[tex]Dose = \frac{mass of drug in mg}{mass of cat in kg}[/tex]
[tex]Dose = \frac{21mg}{4.54kg}[/tex]
[tex]Dose = 4.63mg/kg[/tex]