Many people would be scared if they saw in the mirror, not their face, but their character.
Anonymous
Quote #55
The best kind of humans are the ones who stay.
R.M. Drake
Tukang Kayu
Seorang tukang kayu membutuhkan waktu 4 menit untuk membelah kayu menjadi 4 bagian. Berapa waktu yang dibutuhkannya untuk membelah kayu tersebut menjadi 3 bagian?
Jawaban
8/3 menit.
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Penjelasan
Untuk membelah kayu menjadi 4 bagian, tukang kayu hanya membutuhkan 3 kali pembelahan. Setiap pembelahan memakan waktu 4/3 menit.
Untuk membelah kayu menjadi 3 bagian, tukang kayu hanya membutuhkan 2 kali pembelahan dengan waktu 2 x (4/3 menit) = 8/3 menit.
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Playing Games With Eternity: The Devil’s Offer
by Edward J. Gracely
Suppose Ms C dies and goes to hell, or to a place that seems like hell. The devil approaches and offers to play a game of chance. If she wins, she can go to heaven. If she loses, she will stay in hell forever; there is no second chance to play the game. If Ms C plays today, she has a 1/2 chance of winning. Tomorrow the probability will be 2/3. Then 3/4, 4/5, 5/6, etc., with no end to the series. Thus every passing day increases her chances of winning. At what point should she play the game?
The answer is not obvious; after any given number of days spent waiting, it will still be possible to improve her chances by waiting yet another day. And any increase in the probability of winning a game with infinite stakes has an infinite utility. For example, if she wait a year, her probability of winning the game would be approximately .997268; if she waits one more day, the probability would increase to .997275, a difference of only .000007. Yet, even .000007 multiplied by infinity is infinite.
On the other hand, it seems reasonable to suppose the cost of delaying for a day to be finite — a day’s more suffering in hell. So the infinite expected benefit from a delay will always exceed the cost.
This logic might suggest that Ms C should wait forever, but clearly such a strategy would be self defeating: why should she stay forever in a place in order to increase her chances of leaving it? So the question remains: what should Ms C do?
© Edward J. Gracely June 1988
Straw Hat Samurai
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Missionaries and Cannibals Problem
History of Japan
⚠️ File size 124.88 MB.
Matchstick Puzzle #1
Buatlah rumah 1 tingkat di atas menjadi 2 tingkat dengan memindahkan korek api sesedikit mungkin.
Jawaban
Tidak perlu memindahkan korek api, cukup dengan memutar gambar di atas -90°. Hasilnya bisa dilihat pada gambar di bawah ini.
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Quiz Parampaa
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Password
Level 11: eleven
Level 21: twenty1
Level 29: bartman
Level 31: thirty1
Level 41: fourty1
Level 52: fifty2
Level 67: sunset
Level 71: dorayaki
Level 80: linger
Level 90: gomugomu
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Bloxorz
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Password
Level 01: 780464
Level 02: 290299
Level 03: 918660
Level 04: 520967
Level 05: 028431
Level 06: 524383
Level 07: 189493
Level 08: 499707
Level 09: 074355
Level 10: 300590
Level 11: 291709
Level 12: 958640
Level 13: 448106
Level 14: 210362
Level 15: 098598
Level 16: 000241
Level 17: 683596
Level 18: 284933
Level 19: 119785
Level 20: 543019
Level 21: 728724
Level 22: 987319
Level 23: 293486
Level 24: 088198
Level 25: 250453
Level 26: 426329
Level 27: 660141
Level 28: 769721
Level 29: 691859
Level 30: 280351
Level 31: 138620
Level 32: 879021
Level 33: 614955
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