Wood cuboid

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

Correct result:

m =  72 kg

Solution:

V=0.15⋅ 0.20⋅ 3=0.09 m=800⋅ V=800⋅ 0.09=72 kg

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