Question

the dimension of a metal box are 22. by 2.5m by 25cm. it is melted and recast into cubes, each of sides 55cm. how many cubes are formed

Answer 1

$volume \: of \: cuboid = l \: b \: h \\ \\ = (22 \times 250 \times 25) {cm}^{3} \\ = 137500 {cm}^{3}$
Now,

Required number of cubes =
$\frac{volume \: of \: cuboid }{edge \: of \: cube} = \frac{137500}{55} = 2500$



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