Question

Cleocin suspension is available in a concentration of 75 mg/5 ml. how many ml are required for a 300 mg dose?

Answer 1

20ml because 75mg four time equal 300mg and 5ml four times equal 20ml

Answer 2

Answer:

For a $300mg$ dose $20ml$ are required

Explanation:

To solve this problem, we can state that exist a direct linear relationship between the amount of $mg$ and the amount of $ml$

We can write the following rule of three and find the value of ''$x$'' :

$\frac{75mg}{5ml}=\frac{300mg}{x}$ ⇒

$x=\frac{(300mg).(5ml)}{75mg}$

$x=20ml$

We find that the milliliters required for a $300mg$ dose are $20ml$