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Jan 10th, 2002, 02:53 PM
#1
Thread Starter
Hyperactive Member
McDonald's Choice Menu?...
I walk past this great big billboard on my way to college every morning. At the moment, a McDonalds advert is up:
"The McDonalds New McChoice Menu. <8 pictures of fries, drink, big mac etc>. Only 99p each. In 40312 combinations."
This really bugs me. I got thinking about it: How can 8 items be arranged in 40312 ways? I assume the following could be valid combinations:
drink, fries, mcslurry
drink, fries, bigmac
drink
drink, fries
etc etc
If I were to work out the number of combinations I would do:
8C1 + 8C2 + 8C3 + ... + 8C8
But this doesn't equal 40312. Oh no. So, I played around with some numbers. The closest I can get is that they have (mistakenly) done something with 8P8, which equals 40320. This is, funnily enough, 8 more than the claimed combinations.
However, if they're using permutations they they count:
drink, fries and
fries, drink
as 2 different choices!!
There are 10 types of people in the world - those that understand binary, and those that don't.
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Jan 10th, 2002, 04:18 PM
#2
Fanatic Member
Maybe there's a connection between the people who've made careers @ McDonalds, and people that are bad at mathematics...? 
Digital-X-Treme
Contact me on MSN Messenger: [email protected]
[VBCODE]Debug.Print Round(((1097) - ((55 ^ 5 + 311 ^ 3 - 11 ^ 3) _
/ (68 ^ 5))) ^ (1 / 7), 13)[/VBCODE]
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Jan 10th, 2002, 04:47 PM
#3
Member
or maybe that grease and oil have made them stupid
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Jan 10th, 2002, 05:06 PM
#4
PowerPoster
Sue them for false advertising... and emm it wouldnt hurt to add a clause about the coffee being a tad burny
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Jan 11th, 2002, 05:37 AM
#5
Thread Starter
Hyperactive Member
Well...
What makes it funnier is that they've done (or at least I think they've done) 8P8 - 8, counting permutations as combinations with the exception of single items!
Oh well. One Big Mac too many I think.
There are 10 types of people in the world - those that understand binary, and those that don't.
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Jan 11th, 2002, 05:41 AM
#6
PowerPoster
David
Did u see the thread re the new plastelina game.. i remember u liked the others.. i expect a 3 page algebraic formula for game 5 asap! 
http://www.vbforums.com/showthread.p...ght=plastelina
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Jan 11th, 2002, 02:17 PM
#7
Thread Starter
Hyperactive Member
Well...
Chuckle, cheers beach, I did see the thread and I'm saving it for the weekend.
I'll prob crack it with the "dreaded M word"!
There are 10 types of people in the world - those that understand binary, and those that don't.
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Jan 13th, 2002, 08:20 AM
#8
by my reckoning, 109600 different people could walk into McDonalds, and each could take a unique order without taking more than 8 items.
8p8+8p7+8p6....+8p1 = 109600
combinations instead of permutations yields 255 combos, assuming no takes 2 drinks or 2 McMuffins.
They've buggered it up from all angles!
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