Answer:
460 mg drug is required for the patient whose weight is 23 kg .
Step-by-step explanation:
It is given that a dose of a drug is 20 mg/kg.
It means for 1 kg weight 20 mg drug is required.
The ratio of drug and weight is
[tex]\frac{drug}{weight}=\frac{20}{1}[/tex]
The weight of a patient = 23 kg
Let x mg drug is required for the patient whose weight is 23 kg. The ratio of drug and weight is
[tex]\frac{drug}{weight}=\frac{x}{23}[/tex]
Equate both ratios.
[tex]\frac{x}{23}=\frac{20}{1}[/tex]
On cross multiplication we get
[tex]x=20\times 23[/tex]
[tex]x=460[/tex]
Therefore, 460 mg drug is required for the patient whose weight is 23 kg.
