66.67 mg ang dose ng gamot para sa bata ayon sa Clark's Rule.Clark's RuleGiven:Adult Dose = 200 mgChild’s Weight = 50 lbsFormula:[tex]\sf \: Child's \: Dose = ( \dfrac{Weigth \: in \: lbs}{150}) \times Adult \: Dose[/tex]Solution:[tex]\sf \: Child's \: Dose = ( \dfrac{ 50}{150}) \times 200 \\ \\ \sf Child's \: Dose = (0.3333) \times 200 = \boxed { \sf66.67 \: mg}[/tex]