Question

A cube is painted blue on two adjacent surface and black on the surface opposite to blue surface and green on the remaining faces now cube is cut into 216 smaller cube of equal size how many smaller cube has only one surface painted

Answer 1

We know that cubes with no surface painted can be find using formlua:
${(x - 2)}^{3}$
x= no. of sides
${(6 - 2)}^{3} = {4}^{3} = 64$
here cube has 6 sides