Does anyone else feel that the pattern recognition questions are sort of ridiculous? Like they seem so arbitrary and too vague. I don't know, maybe im being dramatic, but they feel sort of unfair.
As alex said it will be d 390 because of it is divisble by 3. However there is another pattren in It but since the options are not there its not right answer. But the pattren is 129/3=43-1=42 which is top number now 42/3=14 -2 = 12 so it can be 12/3=4 -3=1.😊
For Triangle: multiply top triangle with bottom left triangle, multiply bottom left triangle with middle triangle, finally add the products along with the top triangle. The result is the bottom right triangle.
solved the triangles question by adding left number and top number, and multiplying it by 2, then subtracting the middle number. so 3*2=6, 6*2=12, 12-1=11(bottom right). 7*4=28, 28*2=56,56-3=53(bottom right). if you continue pattern, you get 233
a MUCH easier way to solve problem #1 is to multiply the top and left corners, double that number, and subtract the middle number from that total number.
In the question of finding missing number in 4 squares. I found that the 1st column is not relevant and only difference of 4 exist between column 2 and 3 so it was quick.
For the four square triangle, I added up the colored numbers in each triangle. You get 16, 64, 256. Then I took the sqaure root of each of those: 4, 8, 12. (They are increasing by 4.) So for the last triangle I squared 16 to get 256, and knew that the colored outside numbers needed to add up to 256. 8 + 15 + ? = 256, so the answer is 233. So I did use the colors to help me think about it and could the different colors be hinting to look for patterns within a triangle and not across triangles?
The one at 12:35 looks tough. Multiply the previous (left) figure by 3 and add an element {6,3,0} when moving clockwise. That is, 3 x 12 + 6 = 42, then 42 x 3 +3 = 129 and 129 x 3 + 0 = 387.
That was my thought process too. But since 387 wasnt an answer choice, I just picked 390 since all of the side numbers were divisible by the center number, 3.
For the first question.: 15X8= 120, 15x 7= 105. Add both, 120 + 105= 225. Then add the top number. 225 +8=233. Works will all the triangles. So many ways to solve these !
Another way to solve the triangle pattern is the look at the pattern between the bottom right numbers. 11 - 53 = 42 // 53 - 127 = 74 // 42 - 74 = 32 + 4 (difference between the bottom left triangles = 36 // so add 36 to 74 to get the new number (106) to add to 127 // 127 + 106 = 233
Wow. So I started off with the left to right pattern: 12 squared = 144 minus 15 (12+3) = 129. That pattern did not obviously work for the top down from 42... I see the 390 and the logic behind it now.😅
Why? I think it’s B), because there are 5 middle blue triangles , but the white triangles on the edges need to have 2 stacked on top of each other for each 4 corners
Both of you are mistaken for a reason he actually calls out in the summary. Neither of you finished the request of the question, which was to take the sum (which is 18 and option C), but then divide it by 2. Which is 9, option A.
