Question

A cube of side 3 cm is coloured pinkish on all sides.it is then cut into smaller cubes of 1 cm side.how many cubes will have two faced coloured?

Answer 1

gud ques...but I don't know the ans...sorry....really too tricky ques

Answer 2

Answer: There are 12 cubes that will have two faced coloured.

Step-by-step explanation:

Since we have given that

Length of edge of pinkish cube = 3 cm

Volume of cube would be

$a^3=3^3=27$

Length of edge of smaller cube = 1 cm

So, the number of cubes will have two faced coloured is given by

$12(n-2)\\\\=12(3-2)\\\\=12\times 1\\\\=12$

Hence, there are 12 cubes that will have two faced coloured.