中科新闻网英雄无敌6最强英雄:翻译并解答
来源：百度文库 编辑：中科新闻网 时间：2024/05/03 21:04:44
Mr Jones, the local baker, was asked how many loaves of bread he had sold last Monday. Feeling rather mischievous he said:
“My first customer bought half of my bread plus half of a loaf extra. My second customer, Mrs Smith, bought half of what was left plus half a loaf more. The third customer asked for half of what I had left plus an extra half a loaf to feed the ducks in the local park.
By the time Mr Black, the fourth customer, visited the shop. The baker had sold out of all his bread. He didn’t sell any half loaves.
Q: Can you work out how many loaves he sold?
“My first customer bought half of my bread plus half of a loaf extra. My second customer, Mrs Smith, bought half of what was left plus half a loaf more. The third customer asked for half of what I had left plus an extra half a loaf to feed the ducks in the local park.
By the time Mr Black, the fourth customer, visited the shop. The baker had sold out of all his bread. He didn’t sell any half loaves.
Q: Can you work out how many loaves he sold?
琼斯先生是一个当地的面包师,当被问起上周一销售了多少块面包。出于一种恶作剧的目的，他说：“我的第一个顾客买了我的面包一半的量加上半块面包；我的第二个顾客斯密斯太太买了剩下的面包的一半加上半块面包。我的第三个顾客买了剩下的面包的一半加上半块面包到当地的公园去喂鸭子；第四个顾客布莱克先生来到本店，面包师卖光了所有面包，他没有卖任何半块面包。”
问：你能计算出他卖了多少面包吗？
解：设第四个人买了X块面包
则第三个人买了X／2 ＋0.5＝0.5X＋0.5
第二个人买了（3X／2＋0.5）／2 ＋0.5＝0.75X＋0.75
第一个人买了〔1.5X ＋0.5 ＋0.75X＋0.75〕／2＋0.5＝1.125X＋1.625
所以，总面包数＝1.5X＋0.5＋0.75X＋0.75 ＋1.125X＋1.625＝3.375X＋3.875
由于面包师最后把面包全部卖完，所以3.375X＋3.875应当是一个整数
3.375X＋3.875＝27／8*X＋31／8＝（27X＋31）／8
当X＝1时
.....
不想算了
有人问当地的面包师琼斯先生，问他上周一卖了多少个面包。他很郁闷地说：“我的第一个顾客买了我所有面包数的一半外加半个面包。第二个顾客史密斯太太买了余下面包总数的一半外加半个面包。第三个顾客要了再剩下面包总数的一半外加半个面包到公园去喂鸭子。等到第四个顾客来时，所有的面包都卖完了，他什么也没买到。”
问：他（琼斯先生）总共卖出多少面包？