A cube painted Green on all faces is cut into 27 small cubes of equal size. How many small cubes are pained on one face only ?
Answer & explanation
Correct answer: option 3
The correct answer is option (3) : 6
SIZE OF SMALLER CUBES = 27 CM
NUMBER OF LAYERS = 3 × 3 × 3 (EQUALLY CUT)
THEREFORE N = 3
For 1 side painted cubes , formula is:
= 6 (n - 2)2
= 6 (3 - 2)2
= 6 (1)2
= 6