[中譯] Puzzleup 2011 (05) A Faulty Pair of …

看板puzzle (益智遊戲 - 數獨,拼圖,推理,西洋棋)作者LPH66 (-858993460)時間14年前 (2011/08/26 01:37)推噓1(1推 0噓 1→)

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題目網址: www.puzzleup.com/2011/puzzle/?223 加分時限: 8/25 7PM - 8/30 7PM 答對可得基本分１００分。答案可上傳５次，每改１次答案從基本分扣２０分。　比賽期間內可隨時上傳答案，加分時限內答對第ｎ天加（６－ｎ）分　　　　　另依題目的難易有額外加分（如有８０％的人這題答錯，答對者加８０分）　　 ◆A Faulty Pair of Scales You have a pair of scales which has two production defects: 1) The weight of the two weighing pans are not equal. 2) The lengths of the two arms are not equal. Using this faulty pair of scales and standard weights you are weighing the balls A, B and C. · The weights of the balls are even numbers, different from one another. · When you put balls A and B on the right-side pan, you need to put 20 grams weight on the left-side pan to achieve equilibrium. · When you put balls B and C on the left-side pan, you need to put 18 grams weight on the right-side pan to achieve equilibrium. · When you put all three balls on the right-side pan, you need to put X grams weight on the left-side pan to achieve equilibrium whereas when you put all three balls on the left-side pan, you need to put X-5 grams on the right-side pan to achieve equilibrium. Find the weights of the three balls. Enter your answer as A,B,C by putting commas between the weights. Notes: ‧ The scale may or may not be at equilibrium when both pans are empty. ‧ X may or may not be an integer. 你有一架有兩個問題的天平： 1) 這天平的兩個秤盤不一樣重 2) 這天平的兩臂不一樣長使用這架有問題的天平和標準砝碼量三個球 A,B,C 的重量。 * 三球的重量皆為偶數，且兩兩不同。 * 當你將 A,B 一起放在右盤，則左盤要放 20 克的砝碼才會平衡。 * 當你將 B,C 一起放在左盤，則右盤要放 18 克的砝碼才會平衡。 * 當你將三球都放在右盤，則左盤要放 X 克的砝碼才會平衡；而當你將三球都放在左盤，則右盤要放 X-5 克的砝碼才會平衡。求三球重量。將答案以 A,B,C 格式輸入，中間以半形逗號分隔。注意: * 這架天平在兩邊皆空盤時可能不會平衡。 * X 可能不是整數。 -- 還沒開始算感覺是繁題... -- 1989/02/22 優希堂悟 1990/02/22 冬川こころ 1993/07/05 小町つぐみ 1994/05/21 高江ミュウ 1995/04 歡迎來到星野遊々 1997/03/24 守野いづみ 1997/03/24 伊野瀬チサト 1998/06/18 守野くるみ 1999/10/19 打越鋼太郎的楠田ゆに 2000/02/15 樋口遙 2002/ 12/17 八神ココ 2011/01/11 HAL18於朱倉岳墜機 2011/04/02 ∞與∫的世界茜崎空啟動 2012/05/21 第貮日蝕計畫預定 2017/05/01~07 LeMU崩壞事故 2019/04/01~07 某大學合宿 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 122.254.16.60