What is the minimum number of cuts required to divide a cuboid into 8 equal cuboids?
A. 2
B. 3 (Correct answer)
C. 5
D. 4
Correct Answer
Option B — 3
Detailed Solution & Explanation
The correct answer is 3.
Key Points
To split a cuboid into 8 equal cuboids you need 2×2×2, i.e. two pieces along each of the three dimensions — one cut along the length, one along the breadth, one along the height. That's 3 cuts.
Generalise: to get 2×2×2 = 8 pieces you need one cut per axis.
Trying to reach 8 with fewer than 3 planar cuts is impossible because each new axis needs its own cut.