Block-shaped 33731

How much sand is needed for a block-shaped landing pad with dimensions:

Length 5.25 m, width 2.25 m, and the layer of sand should be 30 cm thick.

How many times do we have to turn the cart if we load 0.75 m of sand on the cart?

Correct answer:

V =  3.5438 m³
n =  5

Step-by-step explanation:

$$\begin{gathered} a=5.25\text{m} \\ b=2.25\text{m} \\ c=30\text{cm}\to \text{m}=30:100\text{m}=0.3\text{m} \\ V=a\cdot b\cdot c=5.25\cdot 2.25\cdot 0.3=3.5438{\text{m}}^3 \end{gathered}$$

$$\begin{gathered} V_1=0.75{\text{m}}^3 \\ n=\lceil V/V_1\rceil =\lceil 3.5438/0.75\rceil =5 \end{gathered}$$

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