给你一个完整的过程:
(59+59+59+59+59+1250)×(1+r)=1005
(5×59+1250)×(1+r)=1005
5×(59+250)×(1+r)=1005
(59+250)×(1+r)=201
309×(1+r)=201
1+r=67/103
r=-36/103
给你一个完整的过程:
(59+59+59+59+59+1250)×(1+r)=1005
(5×59+1250)×(1+r)=1005
5×(59+250)×(1+r)=1005
(59+250)×(1+r)=201
309×(1+r)=201
1+r=67/103
r=-36/103