Self referential?

Algebra Level 1

What is half of the finite answer to this question?

If you think there is no possible answer put 99999.

The answer is 0.

1 solution

Geoff Pilling
Aug 2, 2017

Let $a$ be the answer to the question.

$a = \dfrac{a}{2}$

$\implies \dfrac{a}{2} = 0$

$\implies a=\boxed{0}$

I think "infinite" is also an answer to this question.

Ossama Ismail - 3 years, 10 months ago

Ah... Very true! Lemme think of a good way to reword the question.

Geoff Pilling - 3 years, 10 months ago

Solutions = - infinite, 0 and + infinite

Ossama Ismail - 3 years, 10 months ago

Definitely... The only thing that saves us here is that there is no way to enter two of those in as a solution, so 0 is the only "available" solution. However, point taken. Some clarification would be in order!

Geoff Pilling - 3 years, 10 months ago

There, I've clarified it a bit.

Geoff Pilling - 3 years, 10 months ago

@Geoff Pilling – you may mention "Find a finite solution ...."

Ossama Ismail - 3 years, 10 months ago

Self referential?

The answer is 0.

1 solution

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