Block-shaped 5875

The block-shaped tank has dimensions of 320cm, 50cm, and 180 cm.
1. How much water can fit in it?
2. It was 45% filled. How much water was in it?

Correct answer:

h =  28.8 hl
p =  12.96 hl

Step-by-step explanation:

$$\begin{gathered} a=320/10=32\text{dm} \\ b=50/10=5\text{dm} \\ c=180/10=18\text{dm} \\ V=a\cdot b\cdot c=32\cdot 5\cdot 18=2880{\text{dm}}^3 \\ V=2880\text{l} \\ h=V/100=2880/100=28.8\text{hl} \end{gathered}$$

$p=\frac{45}{100}\cdot h=\frac{45}{100}\cdot 28.8=\frac{324}{25}\text{hl}=12.96\text{hl}$

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