I am solving a Mensa tryout IQ test from Finland and explaining each solution. Practice makes perfect. Enjoy! Here is the link to the test: www.mensa.fi/iq...
Regarding the answer you provide in 51:40. I came up with a different solution. In the first place i tried with the "mirror" way to solve it, but honestly I found it too convoluted. Then I became aware of, possibly, another way but with a different answer. Each row has a box with 0 angles below 180°, another box with 2 angles below 180°, and another box with 3 angles below 180°. As showed: Firt row, first column: 2 angles below 180° First row, second column: 0 angles below 180° First row, third column: 3 angles below 18p° Second row, first column: 0 angles below 180° Second row, second column: 3 angles below 180° Second row, third column: 2 angles below 180° Third row, first column: 0 angles below 180° Third row, second column: 3 angles below 180° So the answer in the third row, third column must be a box with 2 angles below 180°. So according with this reasoning the answer is the inverted "U" placed at the bottom left corner.
You're good at explaining. Thank you. But at around 17:47 you say something like we can't find a pattern to figure out white+white. If you look at the middle column you see that white+white=white because the rule also applies vertically.
10:59 right and left are same signs and top and bottom are the same. I didn't rotate anything. Same at 12:14 it's just mirroring no need to rotate. At this paste 20 second is not enough to solve the puzzle. So for 3:09. Its not 90 degree rotation. It's just mirroring
46:33 I'm ok with the other ones in this puzzle, but I can't figure out why CC is good. When you have a moment, can you please explain? 52:11 Did you find the solution for this one, or there's really a mistake?
I try to answer your second question: instead of adding the first two, lets focus on the difference between the last two. And lets say that only the squares matter, the line is just there for the squares to be on or under. First row: Difference between the same thing is obviously nothing, so no squares in the top right. Second row: if we have two groups of squares (left and right), lets focus on them induvidually: the difference between the right sides (2x 2 little squares) is like in the first row nothing. For the left side, we learn that the difference between a big and a small square and two big squares is two little squares. Third row: for the difference to be 2 little squares on the left side, the mystery cell (don't know how it's called ;D) must contain on the left side a big and a small square. And for the difference to be nothing on the right side, there must be exactly the same as on the right site in the middle cell, so two little squares. So the only cell with these properties is the top right one, and that would be my guess. So you can see I worked my way around the problem that he detects by changing the order by which we subtract one cell from another, and I'm not sure if this is a correct strategy and therefore the right answer, so let me know what you think! For the first question, could it be that C can be turned without changing it's shape since it is symmetrical?
I must disagree with you on the puzzle at 25:30. I solved it this way- Moving left to right- in each matrix- the rectangle on the far left moves two over to the right. This is consistent throughout all matrices.
I solved it different way its quicker under 20 second. There are three pattern on each column they repeat one long bar to left and one long to right and one on the middle. I was left between 2 choices. Then I checked small one and its done
Lol why are you just considering rectangle(line) on the far left alone?? What about the rectangle(line) on the far right and the rectangle(line) in the middle?? They also move in certain pattern. According to the movement of all three rectangles 2nd option is right.
I think it doesn’t really matter, like you’re not gonna have a better score, I mean, when you will have 18. (Srry I’m french my English isn’t really good xD)
Same thing, I got 123, but I don't think I'm too smart. In high school I didn't have good grades, although I can't deny that my performance improved a lot in college. Honestly, motivation is much more important than any level of IQ.
Yeaa, don't skip explanation like colum 2. In colum 2 you don't have erase enething, so it's confusing because in colum 3 if you don't erase up line you get difrent answer. So friendly reminder for autor of video, don't skip columns when you see another pattern in second column, it's not the same pattern 👍
Regarding the answer you provide in 51:40. I came up with a different solution. In the first place i tried with the "mirror" way to solve it, but honestly I found it too convoluted. Then I became aware of, possibly, another way but with a different answer. Each row has a box with 0 angles below 180°, another box with 2 angles below 180°, and another box with 3 angles below 180°. As showed:
Firt row, first column: 2 angles below 180°
First row, second column: 0 angles below 180°
First row, third column: 3 angles below 18p°
Second row, first column: 0 angles below 180°
Second row, second column: 3 angles below 180°
Second row, third column: 2 angles below 180°
Third row, first column: 0 angles below 180°
Third row, second column: 3 angles below 180°
So the answer in the third row, third column must be a box with 2 angles below 180°. So according with this reasoning the answer is the inverted "U" placed at the bottom left corner.
Well done!! Thanks for the clear explanations!!! I have a Mensa test in a few hours, ;this really helps. Also to put me at ease a bit 🙂
48:00 was so hard. I would've never found it without your help thanks 😊. I subscribed
Thank you!
thanks for the video!
In 17:47 we can conclude that White+White=White by oberserving the pattern vertically (2nd column)
2:42 the middle one was not clockwise. I think the logic is mirroring the left and right and not clockwise rotation
Although I don't know English I could understand your lesson .Thank you
You're good at explaining. Thank you. But at around 17:47 you say something like we can't find a pattern to figure out white+white. If you look at the middle column you see that white+white=white because the rule also applies vertically.
10:59 right and left are same signs and top and bottom are the same. I didn't rotate anything. Same at 12:14 it's just mirroring no need to rotate. At this paste 20 second is not enough to solve the puzzle.
So for 3:09. Its not 90 degree rotation. It's just mirroring
Thank you
Good job sir. Thanks
Thank you very very much ❤ from Nepal
Think you mix up your 45 and 90 degrees angles. But great video! Thanks! :)
awesome. crystal clear explanation. thanks sir.
Good job sir
Goooood...❤️❤️
46:33 I'm ok with the other ones in this puzzle, but I can't figure out why CC is good. When you have a moment, can you please explain?
52:11 Did you find the solution for this one, or there's really a mistake?
I try to answer your second question: instead of adding the first two, lets focus on the difference between the last two.
And lets say that only the squares matter, the line is just there for the squares to be on or under.
First row: Difference between the same thing is obviously nothing, so no squares in the top right.
Second row: if we have two groups of squares (left and right), lets focus on them induvidually: the difference between the right sides (2x 2 little squares) is like in the first row nothing. For the left side, we learn that the difference between a big and a small square and two big squares is two little squares.
Third row: for the difference to be 2 little squares on the left side, the mystery cell (don't know how it's called ;D) must contain on the left side a big and a small square. And for the difference to be nothing on the right side, there must be exactly the same as on the right site in the middle cell, so two little squares.
So the only cell with these properties is the top right one, and that would be my guess.
So you can see I worked my way around the problem that he detects by changing the order by which we subtract one cell from another, and I'm not sure if this is a correct strategy and therefore the right answer, so let me know what you think!
For the first question, could it be that C can be turned without changing it's shape since it is symmetrical?
@@BenjusJamentus on column: last image minus middle image equals first image, and 1 big square equal 3 small squares
@@hcristi5603 that's a very elegant solution, but there isn't an answer for this one, is there?
@@BenjusJamentus from botom to top, flip orizontaly and reduce overlap, then flip again result. 3sq=1SQ
ah, if I understand it, you did the same trick I did: ignoring order by taking the difference.
I must disagree with you on the puzzle at 25:30. I solved it this way- Moving left to right- in each matrix- the rectangle on the far left moves two over to the right. This is consistent throughout all matrices.
I solved it different way its quicker under 20 second. There are three pattern on each column they repeat one long bar to left and one long to right and one on the middle. I was left between 2 choices. Then I checked small one and its done
Lol why are you just considering rectangle(line) on the far left alone?? What about the rectangle(line) on the far right and the rectangle(line) in the middle?? They also move in certain pattern. According to the movement of all three rectangles 2nd option is right.
Relational shapes is relatively easy for a large brain.
The one at 15:50 should be looked vertically, and not horizontally.
while being 13, scored a 135 on this test. it claims its inaccurate for under 18. could anyone possible tell me whats my actual probable score?
I think it doesn’t really matter, like you’re not gonna have a better score, I mean, when you will have 18. (Srry I’m french my English isn’t really good xD)
@@zertec6402 your brain keeps developing a while after 18 aswell so ofc you can have a higher iq at 18 than you did at 13
@@m1os825 yes, but not a lot I think, like if you’re in the average you can’t be genius if your brain is developping, tell me if I’m wrong
Really overcomplicating a lot of answers, start looking more at diagonals
Same thing, I got 123, but I don't think I'm too smart. In high school I didn't have good grades, although I can't deny that my performance improved a lot in college. Honestly, motivation is much more important than any level of IQ.
21:00?
Yeaa, don't skip explanation like colum 2. In colum 2 you don't have erase enething, so it's confusing because in colum 3 if you don't erase up line you get difrent answer. So friendly reminder for autor of video, don't skip columns when you see another pattern in second column, it's not the same pattern 👍
Yeah, you are absolutely right!
Ridiculous!!
Why ?