Granite cube

What is the weight in kg granite cube with an edge of 0.5 m if 1dm3 of granite weight 2600 g?

Result

m =  325 kg

Solution:

a=0.5 m=0.5⋅ 10 dm=5 dm V=a3=53=125 cm3 h=2600 g=2600/1000 kg=2.6 kg  m=h⋅ V=2.6⋅ 125=325 kga=0.5 \ m=0.5 \cdot \ 10 \ dm=5 \ dm \ \\ V=a^3=5^3=125 \ \text{cm}^3 \ \\ h=2600 \ g=2600 / 1000 \ kg=2.6 \ kg \ \\ \ \\ m=h \cdot \ V=2.6 \cdot \ 125=325 \ \text{kg}

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