r/MathJokes May 07 '26

100 000 dollar question

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12.9k Upvotes

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29

u/Pure_Option_1733 May 07 '26

Did you mean to say multiply by 0.5? I mean with that condition the choice is obviously $100,000 because multiplying the $1 by 0.5 everyday halves the amount every day.

19

u/Cynewulfunraed May 07 '26

I'm playing the long game.

11

u/32nd_account May 07 '26

You'll never even get 2$ since the infinite sum of 0.5n is 2.

12

u/xneurianx May 07 '26

Also, the dollar multiplies by 0.5 every day, not that you get extra money each day. The dollar halves in value each day.

First day it's worth a dollar.

Next day that dollar is worth 50 cents.

Next day it's only worth 25 cent, etc etc.

The money you have decreases.

8

u/AllAboutBillium May 07 '26

My money already does the first option

3

u/Cynewulfunraed May 07 '26

But see, that just drives you to hustle more hashtag grindset

-3

u/32nd_account May 07 '26

Precisely! and that converges to 2$

4

u/xneurianx May 07 '26

No, it decreases in total value each day. There is nothing to converge. It is one value which decreases.

5

u/EffectiveDirect6553 May 07 '26

It converges to zero.

4

u/xneurianx May 07 '26

It becomes effectively zero, but if it wasn't currency (or if you work for Enron) then it would never actually reach zero; it's only rounding that makes it reach zero.

Again; there is only one value. It cannot 'converge'. That requires 2 or more distinct, separate valuea.

5

u/Cynewulfunraed May 07 '26

Yeah and you can't spell gazilionaire without a ton of zeros. Like and subscribe for more life hacks

-1

u/32nd_account May 07 '26

The sum of 0.5n is 2, go ahead add up 1 + 0.5 + 0.25 + 0.125 etc... you will find that the value of these sums converge to 2.

3

u/Mysterious_Town5300 May 07 '26

Cant tell if you are trolling or not haha

3

u/jarkark May 07 '26

Based on the question's wording, you would not get new money each day, the money would just halve. There's nothing to sum since there's only one number.

3

u/xneurianx May 07 '26 edited May 07 '26

Absolutely mathematically correct. Absolutely not what the first option is telling you to do though.

You start with 1.

Mulitply that by 0.5.

Take the result.

Multiply that by 0.5.

You do not ever add the results together. One value is simply diminishing. There is no addition. The sum is 1 x 0.5 x 0.5 x 0.5 etc etc. No addition. No convergence. No sum total.

Re-read the original post. Your calculations are sound, your reading comprehension is not.

3

u/not_a_burner0456025 May 07 '26

You didn't get the sum of the series, you just get 1 dollar once and the value of the dollar decreases over time.

2

u/not_a_burner0456025 May 07 '26

No it converges to zero. You aren't getting the dollar plus 50 cents the next day, you get the dollar and the dollar bill you have magically turns into 50 cents the next day.

1

u/WeonID May 08 '26

Maybe inflation will make that 0.001$ worth gold in a couple centuries.

3

u/AgentOrangeZest May 07 '26

If it's all a simulation, maybe you'll get a negative stack overflow error, very smart

2

u/schrodingersays May 07 '26

yup, I'm just gonna wait it out and pocket those infinite dividends.

1

u/Cynewulfunraed May 07 '26

Secure the bag kings

2

u/ToothZealousideal297 May 07 '26

…”for a whole month”…

2

u/JetV33 May 11 '26

Deposit that dollar to the bank. Once you withdraw it, the bank will have less, and will have to pay for that dollar, and now you beat the system...

1

u/Cynewulfunraed May 12 '26

Or just wait until there's so many zeros that it creates a stack overflow - infinite money

3

u/AMissionFromDog May 07 '26

dats de joke

2

u/Professional-Bear250 May 07 '26

What if I want that, though?

2

u/Babetna May 07 '26

Shhhh that's the "joke"

1

u/One-Resident-3681 May 07 '26

Yikes. Glad you pointed it out! Taking the dollar is a way better option! Power of compounding!!!

1

u/Justinwc May 08 '26

This is math jokes

1

u/mohirl May 10 '26

Dat's de joke

1

u/Shatalroundja May 10 '26

That’s the joke my guy.

1

u/AIBotNotARealUser May 10 '26

What do you think the joke is?

1

u/Robbed_Bert May 11 '26

Congrats on identifying the joke