數學求救!

一對白鴿每月可以生一對小白鴿,這對小白鴿從第二個月起也可以開始生小白鴿。若剛出生的一對鴿子算起,一年後可以
繁殖出多少鴿子?
A:232     B:375        C:376        D:609
識既話可唔可以解釋一下?
THX!

呵

你可以問下你的同學啊

Total number of pigeon pairs in each month:
2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377      where X|n =X|(n-1) + X|(n-2)

Total number of pigeon pairs which are born in the year
377 - 1 = 376 pairs

Total number of pigeons born in the year
376 x 2 = 752 pigeons

The answer will be C if it means pairs...

[[i] 本帖最後由 tzazine 於 2011-3-4 14:48 編輯 [/i]]

maybe 是C吧