Answer:the usual dosage would be
54.55 milligrams.
Explanation:
When Ibuprofen is given for fever to children 6 months of age up to 2 years, the usual dose is 5 milligrams (mg) per kilogram (kg) of body weight when the fever is under 102.5 degrees Fahrenheit. This means that the usual dose for a 18 month old child would be 5 milligrams (mg) per kilogram (kg) of body weight. Since the weight of the child is 24 pounds, we would covert 24 pounds to kilogram.
2.2 pounds = 1 kg
24 pounds = 24/2.2 = 10.91 kg
Therefore, the dosage would be
5 × 10.91 = 54.55 milligrams