标题: 明天考试，紧急求助！！！ [打印本页]

---

作者: xingzhihua    时间: 2003-12-8 22:02     标题: 明天考试，紧急求助！！！

1）  一个序列，从第三位数起，每个数都与它前面连续的两个数的和有关，the number is the sum of the 2 numbers in the sum is odd or ½ if the sum of the 2 numbers are even, the forth number is 7 and the fifth number is 5, what is the first number?

---

作者: LittleLilyLiAng    时间: 2003-12-9 00:32

sorry,这题说的不太清楚，我不知道是什么意思.

---

作者: sharleane    时间: 2003-12-16 01:32

1st, 2nd, 3rd, 7, 5
3rd+7=5*2, so 3rd=3

1st, 2nd, 3, 7, 5
2nd+3=7, so 2nd=4

1st, 4, 3, 7, 5
1st+4=3*2, so 1st=2

I believe the answer 2 is right, how do you think?

---

作者: LittleLilyLiAng    时间: 2003-12-16 20:58

the number is the sum of the 2 numbers in the sum is odd or ½ if the sum of the 2 numbers are even这句话是什么意思?

---

欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/)

Powered by Discuz! 7.2