5
$\begingroup$

Using creative thinking can you show

9 = 4

9 = 8

9 = 14

9 = 24

All four equations follow the same logic/method.

While you are at it can you also show (same logic)

55 = 4

Hint:

Think Roman Numeral for LHS

$\endgroup$
3
  • 3
    $\begingroup$ For the first four, multiply RHS by 9 and take the sum of digits :P $\endgroup$ Jul 8 at 18:51
  • 2
    $\begingroup$ The logic that applies to all is that the equality is false. $\endgroup$
    – Florian F
    Jul 9 at 12:09
  • 1
    $\begingroup$ It strikes me as potentially significant that in A0Z25 the RHS of each equation corresponds to a vowel (E, I, O, Y, then E again)... $\endgroup$
    – Stiv
    Jul 9 at 13:19
13
$\begingroup$

I think this is the reasoning

IX = $\frac{2}{3}$ of the word SIX = $\frac{2}{3} \times 6 = 4$
IX = $\frac{2}{9}$ of THIRTY SIX = $\frac{2}{9} \times 36 = 8$
IX = $\frac{1}{4}$ of FIFTY SIX = $\frac{1}{4} \times 56 = 14$
IX = $\frac{2}{5}$ of SIXTY = $\frac{2}{5} \times 60 = 24$

Bonus

LV = $\frac{1}{3}$ of TWELVE = $\frac{1}{3} \times 12 = 4$

$\endgroup$
1
  • $\begingroup$ And it is finally solved!! Kudos. $\endgroup$
    – DrD
    Jul 10 at 22:45

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.