Question

if i cube which is painted white on top and red on other 5 sides is cut into 27 identical small cubes how many of smaller cubes have just one side minted rate and other side unpainted

a)9 b)5 c) 3 d)1​

Answer 1

Answer:

do zo ab ke qyo hai prem ch ke di ish itu u rc et zee xd cu vu bhi bhi sex

Answer 2

Answer:

a

Step-by-step explanation:

The answer is option A

When the painted cube is cute into 125 small equal cubes, we have:

A 3 faces painted cube on every corner

⇒Number of cubes with 3 face painted=1×8=8

Three 2-faces painted cube on every edge

⇒Number of cubes with 2 face painted=3×12=36

Nine single face painted cube on side

⇒Number of cubes with 1 face painted=9×6=54

∴ Number of cubes with no face painted=125−8−36−54=27