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Sanoj Kumar

· started a discussion

· 1 Months ago

qus no 7 (Question:558826.0)

i need detail explanation

Question:

A cube is painted and cut into 729 smaller and identical cubes by making the minimum possible number of cuts. How many smaller cubes have exactly two painted faces?

Options:
A) 24
B) 84
C) 36
D) 32
Solution:
Ans.(B)

n=9

12(n - 2) = 12(9 - 2)= 12 × 7= 84

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