Look at the numbers in the triangle and find how they are connected to each other.
Once you get the logic behind the numbers you will be able to find the missing number in the last triangle.
So were you able to solve the riddle? Leave your answers in the comment section below.
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If you check all the triangles you will notice that the number in the center is actually the result of the 3 numbers outside;
For the first triangle;
(1 x 2 x 3) + (1 + 2 + 3) = 6 + 6 = 12
Similarly, for the second triangle;
(2 x 3 x 4) + (2 + 3 + 4) = 24 + 9 = 33
Therefore, we can find the missing number in the third triangle as;
(3 x 4 x 5) + (3 + 4 + 5) = 60 + 12 = 72
Missing Number =72.