Question

parikshit makes a cuboid of plasticine of sides 5cm, 2cm,5cm. how many such cuboids will be needed to form a cube? ​

Answer 1

Answer:

L.C.M. of 5 and 2 gives the dimension of the cube to be formed.

L.C.M. of 5 and 2 is 10.

Volume of cuboid =5×5×2=50cm

3

Volume of bigger cube = 10

3

=1000cm

3

Number of cuboids required to make the bigger cube =

(Volume of a cuboid)

(Volume of cube)

=

50

1000

=20