Dimensions 67554

The chest freezer has dimensions (w * h * d) 79.5 * 87.6 * 66.5 cm. Its useful volume is 210 liters. What percentage of the total freezer volume is the usable volume?

Correct answer:

p =  45.3447 %

Step-by-step explanation:

$$\begin{gathered} a=79.5\text{cm}\to \text{dm}=79.5:10\text{dm}=7.95\text{dm} \\ b=87.6\text{cm}\to \text{dm}=87.6:10\text{dm}=8.76\text{dm} \\ c=66.5\text{cm}\to \text{dm}=66.5:10\text{dm}=6.65\text{dm} \\ {V}_1=a\cdot b\cdot c=7.95\cdot 8.76\cdot 6.65=463.1193\text{l} \\ {V}_2=210\text{l} \\ p=100\cdot \frac{V_2}{V_1}=100\cdot \frac{210}{463.1193}=45.3447\% \end{gathered}$$

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