Question

Tom makes a cuboid of plasticine of sides 15cm, 30 cm, and 15cm.How many such cuboids will be required to form a cube?

Answer 1

Given that the dimensions of cuboid are 15cm, 30cm and 15cm.

L.C.M. of 15, 30 and 15 is 30.

Since 15 × 2 = 30

30 × 1 = 30

and 15 ×2 = 30

Hence, the number of cuboids required to form a cube = 2 × 1 × 2 = 4.

Hence, by using 4 cuboids, we can form a cube with side 30 cm each.