GATE | GATE CS Mock 2018 | Set 2 | Question 27

What is the number of closed regions in the Hypercube ?

(A)

6

(B)

5

(C)

3

(D)

4

Answer:(B)
Explanation:

Q3 is a planar graph with 12 edges and 8 vertices. Number of regions = e – v + 2 = 6. One region is unbounded so, number of closed regions = 5

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