Question

Rahul makes a cuboid of sides 3 cm *3 cm * 5 cm.How many such cuboids will he need to form a cube?​

Answer 1

Answer:

Since a cube has all sides equal. We need a side length that can be made by both 3 and 5. Hence we need their LCM, which is 15.

So we need 15/5 = 3 cuboids along the 5cm dimension and 15/3=5 cuboids along the 3cm dimensions.

This computes to 5*5*3 = 75 cuboids.

Hence, 75 cuboids is the answer of the question.