Health: The directions for a pain reliever recommend that an adult of 60 kg and over take 4 tablets every 4 hours as needed, and an adult who weighs between 40 and 50 kg take only
tablets every4 hours as needed. Each tablet weighs
gram.
a) If a 72 kg adult takes 4 tablets, how many grams of pain relievers he or she receiving?
b) How many grams of pain reliever is the recommended dose for an adult weighing 46 kg?
(a) 
∴ A 72kg of adult takes 0.64gm of pain relievers.
(b) An adult of 42 kg of weight should take 
tablets.
As the weight of each tablet = 4/25 grams
⇒ Weight of 
tablets = 
∴ 0.20 grams of pain reliever is the recommended dose for an adult weighing 46 kg.
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