轉貼~超準!!!關於年齡的秘密
在向下捲動看答案之前,請先試著做答,要不然就失去樂趣了!!大概會花15秒吧
一面讀一面做:
[1] 首先,挑一個數字(0 - 7)表示每個禮拜想出去走走的次數
[2] 把這個數字乘上2
[3] 然後加上5
[4] 再乘以50
[5] 如果你今年的生日已經過了，把得到的數目加上1755，如果還沒過，加1754
[6] 最後一個步驟，用這個數目減去你出生的那一年(西元的)
現在你會有一個三位數的數字;
第一個位數是你一開始選擇的數目
(也就是每個星期你希望出去走走的次數)
接下來的二個位數就是你的年齡
(請承認)→真的就是如此
PS: 這個遊戲只有在今年有效 係ｗｏ
負數泥架ｗｏ 半夜無聊，解一下︰
Let x be the number chosen.
After steps 2 - 4, you get 50(2x+5)=100x+250
Let y = 1755 or 1754, depending the conditions of step 5.
now we have 100x+250+y.
Call your year of birth z.
Then the three digit number would be 100x+[(250+y)-z]
Thus, as long as 250+y is the current year, 250+y-z would be your age (this is where the 1755 or 1754 comes from).
Moreover, since x is between 0 and 7, the first digit number of 100x is just x.
Everything would work nicely as long as [(250+y)-z]< 100 (or someone older than 100 years old), otherwise there would be carrying of digits when adding to 100x.
Thus this game doesnt always work, but at least we are young enough. :P
wa...
[quote]Originally posted by [i]matcafe[/i] at 2005-7-19 03:20 AM:半夜無聊，解一下︰
Let x be the ... [/quote]
cooool!! 騙人的小把戲 係wo=.=""點解咁既~佢解個段唔識睇~xdd
搵人解比我睇好嗎=3= unbelieveable!!!!
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