Source:My coaching DPP
The question asks you identify the pattern and find the missing character.
I have been trying to solve this problem from a long time but I have not found any pattern till now. Please help!!
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It's probably a typo
Given that there are only 2 examples to work with, it must be a very simple formula. Usually the formula uses each number once.
I wrote a computer search for all ways to combine the 4 numbers around the circle with operations +, -, *, / in a way that it produces the value in the circle for the left and right case. The only formulas that came out are: (N + E + W - S) and (N + E + |W - S|), with many variations (permutations of the terms, various placement of brackets). These evaluate to respectively 16 and 6 for the middle case.
But these don't appear in the choices.
So either the formula is unusually complicated or there is a typo. I believe the second option is more likely.