I had no problems with solving first 32 questions from http://test.mensa.no but the last 3 questions are totally bugging me out even knowing the answers. Could anyone help me getting the logic behind them?
E A D
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For the last one:
For the second one:
The black balls follow the rule of diagonals going NE described above. The white balls follow a separate rule:
There are two white balls in every cell and they move in a counter-clockwise direction in the column they are in, as shown by the yellow balls above. If a white ball is at the same location as a black ball, only the black ball is shown.
The link provided by @Duck in the comments gives the answer to the first problem, so all three problems should now be answered.
The correct answer for the first one is
E. Look at the 2nd block and see the figure which is shaded out and now see the other two figures, you will see that the other two figures are just opposite/reverse of each other. Now come to the 3rd block and see the figure which is shaded out and see the figure which is not shaded out. So the correct answer should be the figure which is the opposite/reverse of the non-shaded figure in the 3rd block, which is option E.
For the first problem a.k.a problem #33 I looked it up in downward direction. For each column we can see that there is a triangle that never “moves” (red circle) and that's our reference point and it follows the clockwise pattern . So we can expect that in the third column there will be a plain triangle at the upper left corner.
The rest is finding the alternating triangle pattern start from the first column and I guess you can just follow it with few adjustments for the rest of the columns.