stolyar wrote:

you have tricked us with amazing ease

However, we need to know what Solid 2 is, for it could be the same tetrahedron of different type.

I insist on C.

I vote with Mistdew.

A tetrahedron, by its very name, means 4-sides. Any other polyhedron with 4 side is in fact also a tetrahedron. Hence, since the statement states that they are different, any different solid must have more since the tetradron has the least number of sides of any type of polyhedron.

The nitpicking here is what consitutes a different type?

_________________

Best,

AkamaiBrah

Former Senior Instructor, Manhattan GMAT and VeritasPrep

Vice President, Midtown NYC Investment Bank, Structured Finance IT

MFE, Haas School of Business, UC Berkeley, Class of 2005

MBA, Anderson School of Management, UCLA, Class of 1993