IQ Test Labs

The only pattern I can find: there is 6 of each of the bigger circle sets, three of the smaller, three of each triangle. I find inconsistencies in all other patternes mentioned here.

Also, English is not my first language, but I don't understand what described circle set belongs to what set of circles. I see one set of small thin circles with lines attatched to them, one set of medium circles with thick lines, one set of large circles with thin lines. Why is one of them describes as concentric, and which one is that? Aren't all circles sets here part of a concentric shape/placement at some point in the matrix? Or are the concentric circles the ones cut by a line with the bigger outline disappearing in the first row because of alignment with a big circle? If so, why does the concentric circle appear in the first row? I thought it might be the effect fo the solid triangles, but then why do they also appear in the first column of the last row?

The independent circles and the outline circles are shown independently and concentrically in every row. So the third option in row three must be the concentric circles. Then you look at the triangles. They are never shown as concentric, so it must be B.

This one took me a minute. But, when structures 1 and 2 are combined: thick circles cancel each other out; thin circles overlapping with solid triangles , become triangle outlines with small circles; large circles outlines overlapping become smaller outlines; large circle outlines on their own remain. An outlined triangle requires two overlapping solid triangles to be created, so an outlined triangle alone can't become two solid triangles, because there is only one structure left to create. If there had been overlapping triangle/circle outlines it would have been a new outline, or possibly a solid triangle with large circle outlines... but again, that would create two parts, and there's only room for one result.

It's B: There are three types of circle sets: 3 circles touching externally, 3 independent circles, & 3 concentric circles. Each circle set forms part of a second set. The remaining two parts are the circle set with an additional solid triangle, and the the circle set with a composite triangle/circle/lines shape.