夜里退两米。问几天到上面。

一只蜗牛，掉进了深十米的井里。已知它白天爬三米，夜里退两米。问几天到上面。一只蜗牛，掉进了深十米的井里。已知它白天爬三米，夜里退两米。问几天到上面。

j***
2022-03-12
第九天白天（每天（昼夜）等于是爬一米，八天（夜里）就等于是往上爬了8米，所以到第九天白天就爬出来了。）（把10分给我吧，我的答案可是正确的呦）

啷***
2022-03-12
8

S***
2022-03-12
10天

要***
2022-03-12
99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999。
。

赵***
2022-03-12
10除以(3-2)=10(天)

推荐内容