若按7:4的比来放飞一群鸽子与麻雀,鸽子就比麻雀多120只,鸽子与麻雀共放飞多少只

2026-05-18 18:21:50
推荐回答(1个)
回答1:

120÷(

7
7+4
-
4
7+4
),
=120÷
3
11

=440(只).
答:鸽子和麻雀共放飞440只.