That Viral Math Problem (Cheryl's Birthday) - Numberphile

Показать описание

Simon Pampena gives his take on THAT viral math problem from Singapore.
More links & stuff in full description below ↓↓↓

NUMBERPHILE

Videos by Brady Haran

Рекомендации по теме

Комментарии

(In a parallel universe)
Albert: "When's your birthday?"
Cheryl: "July 16th"
The End.

ProtatoYT

I heard a person tell this before but he forgot to limit the dates to a specific range, making it seem like they somehow figured out the Birthday from 365 possible days.

DarkdustDragon

I think solving the actual problem is really messing up priorities; honestly we should be more focused on the totally genius cognition of Albert and Bernard. I mean, they solved such a spontaneous question with such speed and precision, it's amazing Harvord isn't on their case. 😜

interestedbee

Came for the math. Stayed for the seductive whispering.

nogoat

I think the bigger question is, who wants to be friends with a woman like Cheryl? Can you imagine what it'd be like?

'So what time's the party?'

'It's either on the hour or the half hour, between 10am and-'

'OK, forget it. Not going.'

garethdean

One of my favourite math jokes operates on a similar principle:
Three mathematicians walk into a bar. The bartender asks "Do you all want a beer?"
Mathematician A: "I don't know"
Mathematician B: "I don't know"
Mathematician C: "Yes"

brodieboy

Real world version of this:

Albert: “July.”
Bernard: “Sixteen.”
*high five*

They clearly communicate somehow, why couldn’t they be like normal people and just tell each other?

Kwpolska

Bernard: “Cheryl, when is you’re birthday?”

Cheryl: “I have a boyfriend”

SaxandRelax

The moment he finished drawing the table, I knew exactly what his explanation was going to be, though I didn't know the exact answer. That table cleared everything up so elegantly.

limyutong

The best thing about this problem: people getting excited about math.
The worst thing about the problem: viral sites and people implying that people who solve a fairly straightforward logic prob, similar to those found in any popsci mag quiz page, are geniuses.

DisRes

Great problem, but it seems I have been living under a rock because I hadn't heard about it before.

PinkChucky

"If he's holding on to 15, 16, or 17 in his head--or really, in his heart, because we're dealing with cheryl here" loool

inordirectional

An underappreciated fact of this brilliant logic problem: It's amazing enough that both Albert and Bernard can deduce Cheryl's birthday in this manner. It's even more amazing than an outside observer can also deduce Cheryl's birthday without being told the month OR the date.

uraldamasis