if 1cm^3 of iron with 10 gram then the weight of a solid rectangular iron piece of size 50 cm x 40 cm x 10 cm is
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Step-by-step explanation:
Weight of iron piece having volume 1cm^3=10gram
Volume of rectangular iron piece=50cm×40cm×10cm
=20000cm^3
=2×10^4cm^3
Weight of rectangular iron piece=2×10^4×10
=2×10^5gram
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