Question

Find number of vertices in a polyhedron having 15 faces and 20 edges

• A. 8
• B. 6
• C. 7
• D. 9

Answer 1

The correct option is C

7

For any polyhedron, Euler's formula is F + V - E = 2
15 + V -20 = 2
V = 7

Sum of digits of 456732 = 27, which is divisible by 3 and 2