Social media nowadays have become a question paper itself. Every day new challenges come up, like Bottle cap challenge and now the math’s equation. Well, if you hate mathematics, the place is not for you, but if you love maths, then time for another test. A Twitter user named KJ Cheetham recently shared a match equation which seems simple and easy, with the answer provided, asks the people to make a sense out of it.
A maths meme that is actually funny rather than stupid:
230 – 220 x 0.5 =
You probably won’t believe it but the answer is 5!#maths
— KJ Cheetham ❄️ #FBPE 🔶 (@kj_cheetham) July 13, 2019
He wrote in a tweet, “A maths meme that is actually funny rather than stupid: Solve carefully! 230 – 220 x 0.5=?” Likewise, he shared an answer and wrote, “You probably won’t believe it but the answer is 5!”
Well played, sir. Well played. pic.twitter.com/VRUV5mCGjn
— Pierre Griese (@PeeGee84) July 14, 2019
No, it’s 120, unless it’s written (230-220) x 0.5.
Multiplication has a higher priority than addition or subtraction, unless overridden by brackets
— David Hazel #FBPE #PeoplesVote 🇬🇧🇪🇺 (@dhazel418) July 13, 2019
Is it 5? No! It is 5!
— Stefan Rahmstorf (@rahmstorf) July 14, 2019
— 🍊TonyRockyHorror🍊 (@maroleon111) July 15, 2019
The equation grabbed the attention of the people and collected 29,672 retweets so far and about the likes, it got 58,035 hearts for the equation. There were many who tried to solve the math equation, but some of them were just scratching their heads.
I had to think 1 min why….
12 years ago i would have known it immediately!
I'm getting old… Oh Noooooo
— Peter Millet (@peter_millet) July 14, 2019
I am not advanced enough to understand why this is not 120 and that makes me sad ☹
— EU Naughty Boy 🇪🇺🏳️🌈 (@RemainOnly) July 13, 2019
Remarkably, it's also 5 x 4!
— Michael E. Mann (@MichaelEMann) July 14, 2019
Mind doesn't say 5, but 5!
— Stefan Blomme 🌈🦄🧜🏿♀️🧜🏼♂️✊ (@BlommeHolm) July 14, 2019
If you go by school-level maths then the answer concludes 120, but how did it get 5? Puzzled? Okay, well now see the answer again. The user wrote the answer is 5!. Don’t neglect the exclamation here. The exclamation is a symbol for factorial, which is denoted by ‘n!’ and hence it is the product of the rest of the positive integers less than or equal to ‘n’. This means ‘5!’ is “5 x 4 x 3 x 2 x 1”, and hence the answer is 120. Hence Proved.