一个小学计算题，看看大家是不是退步了……

SMTIE

Solve this Puzzle... Drill this out and see if you are a mathematician.
There is a bus with 7 girls inside,
一辆汽车上有7个女孩，
Each girl has 7 bags,
每个女孩有7个包，
Inside each bag, there are 7 big cats,
每个包里面有7只大猫，
Each big cat has 7 small cats,
每只大猫养了7只小猫，
All cats have 4 Legs each!
每只小猫有4条腿！
Question: How many Legs are there inside the bus?  
The total number of Legs would be the password for this file:  
If you can't open the file, the answer you obtained is wrong
问题：请问这辆汽车上一共有多少条腿？？？

01logic

1386

btt4444

10990

hyj136

7X2＋7X7X7X4＋7X7X7X7X4＝10206

SMTIE

多想象哦

芒果坚果

10206

sailcom

问多少条腿？腿共分3种，包括：
1、7个人*每个人2条腿；
2、7*7只大猫*每猫4条腿；
3、7*7*7只小猫*每猫4条腿；
所以：(7*2)+(7*7*4)+(7*7*7*4)=1582条腿。

夕辞竹

9604只腿啦

夕辞竹

9618

忘加了

baobao4423

1386正解吧。7*7*7*4+2*7

大猫养7个小猫，但是条件中小猫没在车上啊。