Question

10.A rectangular solid metallic cuboid 18 cm x 15 cm x 4.5 cm is melted and recast

into solid cubes each of side 3 cm. How many solid cubes can be made?

Answer 1

hi friend
here's your answer looking for

volume of cuboid =
$18 \times 15 \times 4.5 \\ = 27 \times 45 \\ = 1215 {cm}^{3}$
volume of cube =
$3 \times 3 \times 3 \\ = 27 {cm}^{3}$
no. of cubes =
$\frac{1215}{27} \\ = 45$
so, we can make 45 cubes.

hope it helped you
from brainly benefactor
Amaytripathi19

Answer 2

Answer: 45 cubes

Step-by-step explanation:

RECTANGLE :- l= 18cm , b= 15cm,

h=4.5cm

So, Volume of cuboid = l×b×h

= 18×15×4.5

= 1215 cm3

Dimensions of cube = 3×3×3

So, Volume of cube = (l)3

= 27 cm3

So, no. of solid unit cubes = 1215÷27

= 45 cubes