Re: [計量] 幾題計量問題!
※ 引述《tako1016 (Tako)》之銘言：
: 1.x和y是整數，x/y=6/5。問x+y可能的值。
: Ans:44
x:y=6:5
x+y=11n =>11 22 33 44 55
: 2. The sum of three consecutive odd integers, x,y, and z ,
: in ascending order, is 39. What is the sum of the three consecutive
: odd integers that immediately follow z?
: Ans:57
11 13 15
17 19 21
: 3. The sum of seven integers is -1.
: Columu A: The maximum number of the seven integers that can be large than 13
: Columu B:6
: Ans:C
條件是整數，七個值加起來會是負的，然後沒有對這七個值設限
問這七個數字有幾個可以大於十三
因為沒設限，所以負值可以無限小，但至少要有一個
所以最多有六個數可以大於零，大於十三
: 4. A palindrome is a whole number that reads the same forwards as backwards.
: If one neglects the colon, certain times displayed on a digital watch are
: palindromes. Three examples are: 1:01, 4:44 and 12:21. How many times during
: a 12-hour period will be palindromes?
: Ans:57
: 請高手幫我解題
: 真的很謝謝你們!
p是個從前面跟後面讀出來都一樣的數字
在數位表上出現的數字（12小時，中間兩點不算）
有多少符合p的（多少種類）
時分
1 01
11
21
31
41
51
一點到九點都是
9x6=54
在加上
1001
1111
1221
54+3=57
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推
03/31 19:27, , 1F
03/31 19:27, 1F
→
03/31 21:13, , 2F
03/31 21:13, 2F
→
04/01 11:36, , 3F
04/01 11:36, 3F
推
04/01 11:38, , 4F
04/01 11:38, 4F
推
04/01 18:52, , 5F
04/01 18:52, 5F
推
04/02 02:17, , 6F
04/02 02:17, 6F
→
04/02 02:18, , 7F
04/02 02:18, 7F
→
04/02 02:19, , 8F
04/02 02:19, 8F
→
04/02 02:19, , 9F
04/02 02:19, 9F
→
04/02 02:20, , 10F
04/02 02:20, 10F
→
04/02 02:27, , 11F
04/02 02:27, 11F
→
04/02 02:27, , 12F
04/02 02:27, 12F
→
04/02 02:28, , 13F
04/02 02:28, 13F
→
12/02 19:08, , 14F
12/02 19:08, 14F
→
04/13 23:36,
6年前
, 15F
04/13 23:36, 15F
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