Question

60 cm cube of a melt weight 1 kg find the weight of a block of the same melt of the size 20 CM by 12 CM by 5 cm

Answer 1

since the cubes are of same melt it would have the same density.

density = mass/volume

FOR CUBE 1 :

volume = (60)^3 = 216000 = 0.216

mass = 1kg

density = 1/0.216 = 1000/216 = 4.63

FOR CUBE 2 :

volume = 20 x 12 x 5 = 1200 = 0.0012 m^3

density = 4.63 kg/m^3

mass = densiy x volume

= (4.63 x 0.0012 )kg

=0.005556 kg

= 5.556 g