有几道数学题不懂啊！求高手解答！

sheep1266

都是截图，怎么发图片呢？

sheep1266

List K consists of 12 consecutive integers. If -4 is the least integer in list K, what is the range of the positive integers in list K?
选项是：5,6,7,11,12.

sunbibi

List K consists of 12 consecutive integers. If -4 is the least integer in list K, what is the range of the positive integers in list K?
选项是：5,6,7,11,12.

-- by 会员 sheep1266 (2013/2/13 11:53:50)

连续整数，所以是 -4 -3 -2 -1 0 1 2 3 4 5 6 7 这样12个数，现在问正整数的极差，就是7跟1的差，所以是6哈

sheep1266

谢谢，原来是我没有读懂题。。

还有题目。。。谢谢各位！
If Bob produces 36 or fewer items in a week, he is paid X dollars per item. If Bob produces more than 36 items in a week, he is paid x dollars per item for the first 36 items and 3/2 times that amount for each additional item. How many items did Bob produce last week?
(1) Last week Bob was paid a total of $480 for the items that he produced that week.
(2) This week Bob produced 2 items more than last week and was paid a total of $510 for the items that he produced this week.

是sufficient的题~