Friday, 25 March 2016

logical deduction - What is 5 equal to?


Can you find what corresponds to 5?


If: $$1=5$$ $$2=6$$ $$3=7$$ $$4=8$$



then, $$5=?$$


Note: the answer is not 9.



Answer



Is the answer simply



1, due to symmetry (thanks for the correction, @Peter!!) of the equals sign?



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