If Jimmy can eat a whole apple pie in 24 minutes and Susie can eat a whole apple pie in 36 minutes, how long will it take to eat a single pie if it is shared by Jimmy and Susie?
Ready set go!
-Riley
Who likes Apple Pie?
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Re: Who likes Apple Pie?
Use units of s = 6 minutes. Jimmy eats at a rate of 1/4 pie/s, Susie at 1/6 pie/s. So sum them to get 3/12 + 2/12 = 5/12.
Answer is 12/5 s = 12*6/5 minutes = 14.4 minutes.
Answer is 12/5 s = 12*6/5 minutes = 14.4 minutes.
- HappyQuark
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Re: Who likes Apple Pie?
Oh, that's a tough one. Could you rephrase the question in terms of gamma and beta emission half-lives? I do much better with physics than pie.WhoaNonstop wrote:If Jimmy can eat a whole apple pie in 24 minutes and Susie can eat a whole apple pie in 36 minutes, how long will it take to eat a single pie if it is shared by Jimmy and Susie?
Ready set go!
-Riley
- WhoaNonstop
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Re: Who likes Apple Pie?
I wonder if they'd ever put anything about apple pie on the Physics GRE?
-Riley
-Riley
Re: Who likes Apple Pie?
I believe the answer is 18 min, because Susie threatens to stab Jimmy with the pie knife when he moves to eat part of her half of the pie just after the 12 min mark.
- WhoaNonstop
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Re: Who likes Apple Pie?
Correct. Maybe we should translate this problem into Beta and Gamma decays, which won't fight over pie.kroner wrote:I believe the answer is 18 min, because Susie threatens to stab Jimmy with the pie knife when he moves to eat part of her half of the pie just after the 12 min mark.
-Riley
- HappyQuark
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Re: Who likes Apple Pie?
In which universe do Beta and Gamma decays not fight over pie? Not ours, I can assure you.WhoaNonstop wrote:Correct. Maybe we should translate this problem into Beta and Gamma decays, which won't fight over pie.kroner wrote:I believe the answer is 18 min, because Susie threatens to stab Jimmy with the pie knife when he moves to eat part of her half of the pie just after the 12 min mark.
-Riley