Assume the statements are true.

Statements: No brick is a tile. All tiles are slabs.

Conclusions:

I. Some bricks are slabs.

II. Some slabs are not bricks.

Explanation

1. 01

   Every tile is a slab and no tile is a brick, so those slabs (the tiles) are not bricks. Some slabs are not bricks: II follows.

2. 02

   Bricks may or may not be slabs; the statements do not decide. I is not definite.

3. 03

   Only II follows.