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A certain medicine is given in an amount proportional to a patient’s body weight. Suppose a patient weighing 132 pounds requires 143 mg of medicine. What is the amount of medicine required by a patient weighing 156 pounds?

Answer :

if the medicine is proportional to the pateints body weight,

lets say x= the amount of medicine required by the person who weights 156 lbs

x=(156*143)/132=169

the person who weights 156 lbs needs 169 mg of medicine

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