Question

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

Answer 1

Step-by-step explanation:

VOLOME = (side)³

ASSUME WE NEED x CUBOIDS

Volume of cuboid = 3*3*5

=45cm²

VOLUME OF x CUBOIDS =45 * x

=45x

So, 45x is a perfect cube.

15³=3375

we know that 45 is the factor of 15

so, volume is also multiple of 15

so,

45 x = 3375

x = 3375

45

x = 75 cuboids.