Question

One iron solid is a cubiod of dimentions 30 cm x 30 cm x 42 cm. If is melted & cubes each of side 3 cm & moulded from it. Find the number of cubes formed

Answer 1

Answer:

1400 cubes

Step-by-step explanation:

dimensions of the cuboid= 30cm*30cm*42cm

therefore, volume of the cuboid= (30*30*42)cubic cm

and,

side of the cube = 3 cm

therefore, volume of the cube = 3cm * 3cm * 3cm

now,

no. of cubes formed= (volume of the cuboid)/( volume of the cube)

= (30*30*42)/(3*3*3)

= 37800/27

=1400 cubes

so, The no. of cubes formed = 1400 cubes

HOPE IT WILL HELP U ☺️.

Answer 2

Answer:

volume of cuboid= L*b*h

=30*30*42

volume of cube=a³

= 3*3*3

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

=30*30*42/3*3*3

=1400