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What is the simple rule behind these three relations below?

$F$ $\rightarrow$ $C$ :: $R$ $\rightarrow$ $I$ $\rightarrow$ $\sqrt{F}$ :: $IA$ $\rightarrow$ $D$

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1 Answer 1

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Rule

translate to number $A\rightarrow 1,B\rightarrow 2$ etc. turn upside down $6\mapsto 9,18\mapsto 81$ etc. and take the square root.

One-by.one

$6(\mapsto 9)\rightarrow 3$
$18(\mapsto 81)\rightarrow 9(\mapsto 6)\rightarrow \sqrt 6$
$91(\mapsto 16)\rightarrow 4$

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  • $\begingroup$ Yes, well done! $\endgroup$ Nov 5, 2020 at 12:12

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