This question is racking my brains!

the_brainaic said:
Probably matters more on the ethnicity of the teenagers, not the nationality. And Religion. Jews/Muslims can't have salami pizza, more for me :)
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My thinking was more along the lines of the nationality > obesity link (without mentioning particular counrtries).

*squints toward the West across the Atlantic*
 
None of this takes into account that each teenager would slow down considerably once he'd scoffed one or two pizzas ;)
 
Mattus said:
None of this takes into account that each teenager would slow down considerably once he'd scoffed one or two pizzas ;)
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Yes, precisely, lol, and what about the wording of the question, does "in 1 1/2 hrs" imply "within" 1 1/2 hrs? In which case, the answer is 6 teenagers because we know they can scoff down 12 within 1 hr already. :D

If this were on an exam I would answer with "Since you gave me a stupid question I will give you a stupid answer". :D
 
Mulder said:
I think it's simple but I just can't seem to do it!

If six teenagers can gobble up 12 pizzas in an hour, how many
teenagers will it take to eat 6 pizzas in an hour and a half?

Any ideas?

I'm getting 1 and a half teenagers, thus I'd guess it's 2.
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Is it the same teenagers in the question that partook in the first pizza munching expirement?
Do they all have the same "Pizza-munching-speed"?
Are any of them stoned?

Too many variables to answer the question in my opinion. ;)
 
To answer many of your questions...

1) The teenagers are all clones of the original teenager, thus, no differences arise there. (and also had identical upbringings so their phenotypes are the same too ;) )

2) The pizzas are all uniform, exactly the same weight, dimension, "filling up value" etc

3) The teenagers eat at a constant speed, unaffected by what they have previously eaten or are anticipating to eat.
 
Am I the only one who worked this out algebraically?

P=pizzas
K=kids
t=time (in hours)
c=constant

P = c
Kt

12/6*1 = c = 2

rearrange to get K = p/ct

K= 6/2*1.5 = 2

Do I have too much time on my hands?
 
Mulder said:
To answer many of your questions...

1) The teenagers are all clones of the original teenager, thus, no differences arise there. (and also had identical upbringings so their phenotypes are the same too ;) )

2) The pizzas are all uniform, exactly the same weight, dimension, "filling up value" etc

3) The teenagers eat at a constant speed, unaffected by what they have previously eaten or are anticipating to eat.
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Did a small thermonuclear warhead explode on them 1/2 way through the eating process by any chance?
 
lordedmond said:
how can c = constant ?

i thought a constant never changed


yes you do have to much time on your hands use it more productively
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Hmm good point, but here we are assuming the number of pizza consumed per kid per hour is constant. If we didn't then the question would have no answer! I suppose you could call it the rate of pizza consumption per child. Which I will also call c ;)
 
lordedmond said:
it would if you changed p surely


eg pi R squared = area

pi is the constant and never changes
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But if you had less pizzas, it would take either less time to eat them or there would be fewer kids. Therefore it's constant. Basically we're assuming that the rate at which a kid can eat pizza is constant.
 
But if you get one pizza, cut it in half with a Katana, on a treadmill, how many pizzas do you have?
 
Math is math... But if they ate that amount in the l ok longer time, they will prob eat the same amount anyway each.
 
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