Answer :
210 milligrams of the medication a young adult weighing 84kg should receive.
To calculate the correct dosage of the medication for this young adult, you can follow these steps:
- Identify the weight of the person: 84kg.
- Identify the dosage per kilogram: 2.5mg/kg.
- Multiply the weight by the dosage per kilogram: 84kg * 2.5mg/kg.
84kg * 2.5mg/kg = 210mg.
Therefore, the young adult weighing 84kg should receive 210 milligrams of the medication.