Answer this very easy question very fast!!!

Answer this very easy question very fast!!! -seven small cubes ale glued togethcr to make a hlg cube cube is painted yellow in colour. How many among each of the 27 would have tren painted yellow on 4 i i only one of Its faces? two of its faces? til) three of its faces?

Dear student,
So big cube is looked like As:



After we painted exterior yellow  Then

i ) Total number of cube painted 1 faces yellow

Here we can see that there is only 1 cube on every 6 sides of cube SO,
Total one of its faces yellow = 6 × 1  = 6                     ( Ans )

ii ) Total number of cube painted 2 faces yellow

Here we can see that there are 4 marked as two in upper layer and 2 in rest of the sides shown in figure
So we have = 8 cube that's face is yellow on two faces
But we have same three side more that is not shown in figure that also contain 8 cube as yellow with two faces

So we have total number of cube painted 2 faces yellow = 8 + 8  = 16            ( Ans )

iii ) Total number of cube painted 3 faces yellow
There are 4 on upper layer and 4 on lower layer that have 3 faces yellow
SO,
we have total number of cubes painted 3 faces yellow = 8              

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