[閒聊] 假日動動腦的數學題已回收

看板WomenTalk作者 (BB是常態。)時間8年前 (2016/05/01 17:03), 編輯推噓76(76推 0噓 29→)
留言105則, 80人參與, 最新討論串1/1
上次問得數學題似乎無解... 還是搞不太清楚是那個答案 這次一樣在FB看到的 （終於有比較統一的答案了 只是訝異不少人答錯 http://i.imgur.com/JKDB4AH.jpg
不曉得大家這題會答多少呢？ -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 223.138.177.137 ※ 文章網址: https://www.ptt.cc/bbs/WomenTalk/M.1462093425.A.604.html
推
05/01 17:04, , 1F
6
05/01 17:04, 1F
推
05/01 17:05, , 2F
6
05/01 17:05, 2F
推
05/01 17:05, , 3F
6
05/01 17:05, 3F
推
05/01 17:08, , 4F
個人認為這題目出的不好 因為它拿基礎數論的運算 卻沒用
05/01 17:08, 4F
推
05/01 17:08, , 5F
6
05/01 17:08, 5F
→
05/01 17:08, , 6F
數論下的代數去運算 個人覺得是有爭議的
05/01 17:08, 6F
推
05/01 17:13, , 7F
6
05/01 17:13, 7F
推
05/01 17:16, , 8F
3
05/01 17:16, 8F
推
05/01 17:20, , 9F
9
05/01 17:20, 9F
推
05/01 17:26, , 10F
9
05/01 17:26, 10F
推
05/01 17:31, , 11F
6
05/01 17:31, 11F
推
05/01 17:32, , 12F
6
05/01 17:32, 12F
推
05/01 17:35, , 13F
9
05/01 17:35, 13F
推
05/01 17:36, , 14F
9
05/01 17:36, 14F
推
05/01 17:37, , 15F
9
05/01 17:37, 15F
推
05/01 17:38, , 16F
為什麼是6
05/01 17:38, 16F
推
05/01 17:40, , 17F
因為少了4
05/01 17:40, 17F
推
05/01 17:40, , 18F
6
05/01 17:40, 18F
推
05/01 17:41, , 19F
9
05/01 17:41, 19F
推
05/01 17:41, , 20F
done
05/01 17:41, 20F
→
05/01 17:41, , 21F
6
05/01 17:41, 21F
→
05/01 17:42, , 22F
欸 真的欸 少了4
05/01 17:42, 22F
推
05/01 17:43, , 23F
6啊不然勒
05/01 17:43, 23F
推
05/01 17:43, , 24F
如果那天9=72,我就回答這問題
05/01 17:43, 24F
→
05/01 17:43, , 25F
9
05/01 17:43, 25F
→
05/01 17:44, , 26F
對耶少了4
05/01 17:44, 26F
→
05/01 17:49, , 27F
9吧
05/01 17:49, 27F
推
05/01 17:49, , 28F
3
05/01 17:49, 28F
推
05/01 17:50, , 29F
9
05/01 17:50, 29F
→
05/01 17:50, , 30F
真的沒4...XD
05/01 17:50, 30F
推
05/01 17:53, , 31F
12
05/01 17:53, 31F
推
05/01 17:54, , 32F
14
05/01 17:54, 32F
推
05/01 17:55, , 33F
9
05/01 17:55, 33F
推
05/01 17:56, , 34F
6
05/01 17:56, 34F
推
05/01 17:57, , 35F
12
05/01 17:57, 35F
推
05/01 17:59, , 36F
9
05/01 17:59, 36F
推
05/01 18:00, , 37F
6
05/01 18:00, 37F
→
05/01 18:01, , 38F
直覺是6，不過有聽過還要再算一次6=30所以是30的說法
05/01 18:01, 38F
推
05/01 18:01, , 39F
9
05/01 18:01, 39F
還有 26 則推文
→
05/01 19:39, , 66F
9或6
05/01 19:39, 66F
推
05/01 19:40, , 67F
6!!!
05/01 19:40, 67F
→
05/01 20:07, , 68F
6
05/01 20:07, 68F
推
05/01 20:09, , 69F
算法跟m大一樣
05/01 20:09, 69F
→
05/01 20:11, , 70F
6
05/01 20:11, 70F
推
05/01 20:13, , 71F
6
05/01 20:13, 71F
推
05/01 20:33, , 72F
6
05/01 20:33, 72F
推
05/01 20:58, , 73F
6 這不是數學題 而是邏輯題
05/01 20:58, 73F
推
05/01 21:08, , 74F
3=6
05/01 21:08, 74F
→
05/01 21:21, , 75F
9
05/01 21:21, 75F
推
05/01 21:22, , 76F
覺得是6，不過正確答案應該只有出題目的人知道吧 他
05/01 21:22, 76F
→
05/01 21:22, , 77F
想決定答案是什麼
05/01 21:22, 77F
推
05/01 21:49, , 78F
15
05/01 21:49, 78F
推
05/01 21:49, , 79F
覺得題目不好+1，等號根本不成立啊，9不會等於72(固執)XDD
05/01 21:49, 79F
推
05/01 21:56, , 80F
14
05/01 21:56, 80F
推
05/01 22:06, , 81F
覺得6跟9都有道理
05/01 22:06, 81F
推
05/01 22:14, , 82F
6
05/01 22:14, 82F
推
05/01 22:27, , 83F
覺得不是6跟9，因為上面有說6=30、9=72
05/01 22:27, 83F
推
05/01 22:29, , 84F
3=12
05/01 22:29, 84F
推
05/01 22:36, , 85F
05/01 22:36, 85F
推
05/01 22:42, , 86F
覺得12
05/01 22:42, 86F
推
05/01 23:04, , 87F
我照a大的算法也還是6...
05/01 23:04, 87F
推
05/01 23:05, , 88F
05/01 23:05, 88F
推
05/01 23:22, , 89F
6
05/01 23:22, 89F
推
05/01 23:58, , 90F
就前一位數字乘上“數字少１”就是答案了
05/01 23:58, 90F
→
05/01 23:58, , 91F
９*８=７２
05/01 23:58, 91F
→
05/01 23:58, , 92F
８*７=５６
05/01 23:58, 92F
→
05/01 23:58, , 93F
所以３*２=６
05/01 23:58, 93F
→
05/01 23:58, , 94F
註：有人說６=３０也是解答啦？
05/01 23:58, 94F
→
05/01 23:58, , 95F
但是要注意一點是，右邊是算出來的答案，不是等式
05/01 23:58, 95F
→
05/01 23:58, , 96F
不可能３*２=６*５=３０
05/01 23:58, 96F
推
05/02 00:15, , 97F
14
05/02 00:15, 97F
推
05/02 01:26, , 98F
9
05/02 01:26, 98F
推
05/02 01:38, , 99F
9
05/02 01:38, 99F
推
05/02 02:13, , 100F
這是智力測驗題型啊 6
05/02 02:13, 100F
推
05/02 02:58, , 101F
14
05/02 02:58, 101F
推
05/02 03:00, , 102F
9
05/02 03:00, 102F
→
05/02 03:01, , 103F
6啦
05/02 03:01, 103F
推
05/02 11:44, , 104F
6
05/02 11:44, 104F
推
05/02 20:15, , 105F
6
05/02 20:15, 105F
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