Question

A medicine is prescribed at 1⁄2 teaspoon for every 35 pounds of body weight. If a person weighed 175 pounds, how much medicine should they take?

Answer 1

2.5 tea spoon of medicine needed for 175 pound person

Solution:

Given that,

A medicine is prescribed at 1/2 teaspoon for every 35 pounds of body weight

Therefore,

$35\ pounds = \frac{1}{2}\ teaspoons$

We have to find the medicine needed for a 175 pounds person

Let "x" be the teaspoon needed for 175 pound person

Therefore,

$35\ pounds = \frac{1}{2}\ teaspoons\\\\175\ pound = "x"$

This forms a proportion and solve by cross multiplying

$35 \times x = \frac{1}{2} \times 175\\\\x = \frac{87.5}{35}\\\\x = 2.5$

Thus, 2.5 tea spoon of medicine needed for 175 pound person