群鹅，产的卵2/3孵化（be hatched），孵化的小额4/5能survive the first month, 剩下的1/3不能survive first year,问如果一年后有120只鹅，那么当初how many eggs? 600
Tax T is levied on profit P of the Nth month if P is over $5000 by the formula: T=P+N^1/2.What is the profit of September?
A. T-Sep. is over T-Apr. $4000
B. T-Sep. is over T-Jan. $2000
Answer
### x^2+3x+c=y, if y=(x+a)(x+b), ask c=? [C]
1)a=1 2)b=2
why not D?
##one unit 64% person were employed and 48% was employed male, the percentage of employed was female.
A 52% B 25%, C16%…
(64%-48%)/64%=25%
###one unit 64% person were employed and 48% was employed male, the percentage of employed was female.
A 52% B 25%, C16%…
(64%-48%)/64%=25%
###Cycle time(in days)（每次所需天数） Deliveries [29]
1 10
2 9
3 5
4 x
Average delivery cycle time is 3 days; how many delivery should there be for cycle time of 4 days
(1*10+2*9+3*5+4*X)/(10+9+5+x)=3===>X=29
###表格题
天数 传送的件数 [29]
1 10
2 9
3 5
4 X
已知每件的平均传送时间为3, 求花4天传送的件数X
题目是说， Deliveries 按5，9，10的量每三天循环一次，也就是说，第四天的x应该等于第一天的5。加起来，4天一共是29。
Still do not understand?
