※ 引述《matilde207 (理想浮华)》之铭言： : Q17 : In Town X, 64 percent of the population are employed, and 48 percent of : the population are employed males. What percent of the employed people : in Town X are females? : 我算是16%. 但答案是(B)25% : ----------------------------------------------------------------------- 这题我也觉得是 16% ，可能是文意的解读问题？ 请强者帮忙一下 : Q25 : A photographer will arrange 6 people of 6 different hights for photogaph : by placing them in 2 rows of 3 so that each person in the first row : is standing in front of someone in the second row. The heights of the people : within each row must increase fromleft to right, and each person in the : second row must be taller than the person standing in front of himor her. : Howmany such arrangement of the 6 people are possible? : Ans:5 : ----------------------------------------------------------------------- 题目意思是有六人要排两排照相 ABC DEF 这样每一排要从矮到高 然後後面的人要比前面的高 照高度假设 123456 的话 所有前排的人 後排一定要有一个比他高 所以 1 一定要在前排 6 一定要在最後 所以2在前排的话前排就是 123 124 125 3在前排的话前排就是 134 135 4在前排的话 145 後排没有办法两个人比 45 高 所以只有前面五种情形 : Q29 : June25, 1982, fell on Friday. On which day of the week did June25, 1987 : fall? (Note:1984 was a leap year) : Ans: Tuesday : (我选Wednesday) : 非常感谢! 365*5+1 = 1826 (1984润年加一天) 1826/7 =260....6 所以那天是 Friday+六天 也就是 Thursday 礼拜四 这题应该不会错才对 @@ -- ╔═╮╮╮╔═══╗╔═══╗╭═══╮╔══╮╗ ║ ║║║║ ═╣╚═╗╔╝║ ═ ║║ ║║ ║ ║║ ═╣╔═╝╚╗║ ╔╗║║ ║ ║ ╰═══╯╚═══╝╚═══╝╚═╝╚╝╚═╰═╝ --

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