Video of a lady in China has began many arguments on-line. A lady acquired a haircut, however then she realized she forgot her pockets. She asks the barber for 100 RMB, explaining that she lives close by and can shortly return the cash. The barber offers her the 100 RMB. She makes use of the 100 to pay for the 30 RMB haircut and she or he takes 70 RMB in change.
She then returns from house and provides the barber 100 RMB. At this level the barber just isn’t happy. He says, “Wait, you’ve got paid me again the 100, however you continue to haven’t paid for the haircut!”. She explains she paid for the haircut with the 100 RMB he gave her. The proprietor replies that she paid him for the haircut together with his personal cash, so she had not really paid for the haircut but.
Many individuals have commented and analyzed on the video. Some have sided with “the person” and mentioned she by no means paid for the haircut. Others have mentioned she has paid for all the pieces appropriately. Who’s right?
As typical, watch the video for an answer.
Viral Haircut Video Sparks Math Debate
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“All will likely be effectively if you happen to use your thoughts to your selections, and thoughts solely your selections.” Since 2007, I’ve devoted my life to sharing the enjoyment of sport principle and arithmetic. MindYourDecisions now has over 1,000 free articles with no advertisements because of neighborhood assist! Assist out and get early entry to posts with a pledge on Patreon.
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Reply To Viral Haircut Video Sparks Math Debate
(Just about all posts are transcribed shortly after I make the movies for them–please let me know if there are any typos/errors and I’ll right them, thanks).
It ought to be clear the lady is right.
The barber has loaned 100 RMB, and he has given the service of a haircut.
The lady does give him 30 RMB, and she or he later offers him one other 100 RMB to cowl the mortgage. So she has paid appropriately.
The element that appears to confuse individuals is she pays for the 30 RMB with the cash the barber gave her. Nevertheless, that element doesn’t imply the cost is any much less legitimate. We are able to undergo the transactions step-by-step.
1. haircut offered, however not paid
barber is due 30 RMB
2. barber loans 100
barber is out 30 RMB + 100 RMB mortgage
girl has 100 RMB
3. girl pays for 30 RMB haircut, will get 70 change
barber is out 100 mortgage
girl has 70 RMB
4. girl pays 100
barber has recovered mortgage
girl is at 70 – 100 = -30 RMB
So in the long run the lady is out a internet 30 RMB to pay for the 30 RMB haircut offered by the barber.
The half that confuses me is why the barber would mortgage 100 RMB to a lady who already owes him for the haircut. The barber would have been higher simply telling her to go house and return 30 RMB for the haircut.
However maybe the incident was staged for instance a preferred mathematical riddle.
References
Every day Mail
https://www.dailymail.co.uk/femail/article-14907085/hairdresser-underpaid-internet-divided-basic-maths.html
X (full video of incident)
https://x.com/Morris_LT/standing/1824405750078402981?lang=en
Discover with Mia
https://www.youtube.com/watch?v=NpjupyNXgFE
163
https://www.163.com/dy/article/JA9CSB1705568DFL.html
(associated riddle) Man steals $100 invoice
https://www.youtube.com/watch?v=21A6tpxusKk
(associated riddle) Purchased a cow riddle
https://www.youtube.com/watch?v=-OdoMxI3-74
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