Answer:
? = 26
Explanation:
Challenge accepted!
For the bottom left corner:
Now, 10 - 6 = 4
136 / 4 = 34
For the top left corner:
Now, 7 - 5 = 2
74 / 2 = 37
For the top right corner:
Now, 8 - 4 = 4
80 / 4 = 20
For the bottom right corner:
Now, 6 - 4 = 2
52 / 2 = 26
Another method:
5×6+7=37
7×6-5=37
6×4+10=34
10×4-6=34
4×3+8=20
8×3-4=20
So, 4×5+6=26
6×5-4=26
Firstly we have to multiply number with smaller number from the both number, then, multiply that constant number with larger number and then subtract smaller number you will get same number, in this with 4 only 5 constant number following this rule 4×5+6=26, 6×5-4=26, if you multiply 4 with 6, then, 4×6+6=30, 6×6-4=32, and with 7, 4×7+6=34, 6×7-4=38. So, 26 is the right answer of this question