AA: The following appeared in a memorandum from the CEO of a consumer electronics manufacturing firm to the head of the company's human resources department, who is responsible for hiring new employees:
“Eight years ago, our firm’s profits were increasing with each new employee we added. We discovered that each employee had the skills and motivation to generate more revenue for the firm than his or her salary cost us.
However, for the past two years, our profit margin has been falling, even though we have continued to add employees. Thus, our newer employees are not generating enough revenue to justify their salaries. We must not be hiring new employees with the same level of skills and motivation as those we used to attract. Clearly, then, failures in the human resources department account for our falling profits.”
AI: Employers benefit more from the energy and new idea of younger workers than from experience and wisdom of older workers
Maths
以下为我没在沟沟看到过的，
1 -1<x<0, which is the greatest?
A x B x|x| C x的-2次方 D 。。。。
2 有两个2位数M和N，这两个数的十位数sum是14，问M*N最大可能是多少？
3 r ,s 都是小于4的integer，r不等于s， 问 r的-s次方的最大值？
A...B.......D 1/(3的-4次方) E 1/(4的-3次方)
4 三角形3个角度数比值5：15：16，为最小的角的度数？
5 x平方+y平方=10x，问X>Y?
A Y=3
B (x-5)平方=16
以下为沟沟上有的，
1PS 一个老头，62岁退休的话，会每个月得到一笔钱；如果62岁还没退休，以后每个月会加2/3 of 1 percent。现在说这个老头65岁退休每个月拿350，问如果62岁退休的话每个月拿多少？
2 PS 棒子题，说有一个圆柱形can高20 inch, 如果把 a rod塞进去的话，最多可以塞进２５inch的棒子。问这个can的体积最接近下面哪个数字？
