Find the weight of a solid rectangular iron peice of size 50cm × 40cm × 10cm, if (1cm)3 of iron weights 8 gm
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Volume of solid rectangular iron piece= (50×40×10)cm^3
=20000cm^3
1cm^3 weighs =8gm
now, 20000cm^3 will weight= 20000×8gm
= 160000gm
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