# Wood cuboid

What is the weight of the wood cuboid 15 cm, 20 cm, 3 m if 1 m3 wood weighs 800 kg?

Result

m =  72 kg

#### Solution:

$V=0.15 \cdot \ 0.20 \cdot \ 3=0.09 \ \\ m=800 \cdot \ V=800 \cdot \ 0.09=72 \ \text{kg}$

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