Question

A rectangular solid metallic cuboid 18 cm × 15 cm × 4.5 cm is melted and recast into solid unit cubes.how many solid unit cubes can be made?

Answer 1

Your question is incomplete..

I think complete question is this.

Question:

A rectangular solid metallic cuboid 18cm x 15cm x 4.5cm is melted and recast into solid cubes each of side 3cm. How many cubes can be made?


SOLUTION:

Given:
Length (l)= 18 cm
Breadth (b)= 15 cm
Height (h)= 4.5 cm


Volume of metallic cuboid = l× b×h

= 18 X 15 X 4.5

=1215 cm³

Let the total no. of small cubes be x.

volume of a cube = side ³ = a³

= 3³ = 27cm³

volume of a cube= 27 cm³

No.of cubes = volume of cuboid/ volume of cube

= 1215/27 = 45

Hence, 45 cubes can be made from the given metallic cuboid.

Answer 2

Answer:

45 Cubes

Step-by-step explanation:

Given:

Length (l)= 18 cm

Breadth (b)= 15 cm

Height (h)= 4.5 cm

Volume of metallic cuboid = l× b×h

= 18 X 15 X 4.5

=1215 cm³

Let the total no. of small cubes be x.

volume of a cube = side ³ = a³

= 3³ = 27cm³

volume of a cube= 27 cm³

No.of cubes = volume of cuboid/ volume of cube

= 1215/27 = 45

Hence, 45 cubes can be made from the given metallic cuboid.