Question

You bought pound of dry ice for an experiment. When the experiment was over, youfound that you had used only į of what you bought.How much dry ice did you use?1 2/4 pounds 1/4 pound 1 1/12 pounds5/12 pound

Answer 1

Initial weight of dry ice = 3/4 pounds

After the experiment you used 1/3 of what you bought . The amount of dried ice used can be calculated below

$\begin{gathered} \text{dried ice used=}\frac{1}{3}of\text{ }\frac{3}{4} \\ \text{dried ice used}=\frac{1}{3}\times\frac{3}{4}=\frac{3}{12}=\frac{1}{4}\text{ pounds} \end{gathered}$

Amount of dried Ice used = 1/4 pounds