Question 146636
This problem, however unlikely it may be, is quite imaginative.  :)


In order to solve, we must start from the top:


There are seven girls.
7 girls
These seven girls have seven bags apiece.
49 backpacks
In each backpack there are seven big cats.
343 big cats
And for each big cat there are seven small cats.
2401 small cats


Now we must find out how many legs are on the bus.


Assuming that each girl has two legs, and each cat has four,


7(2) + 343(4) + 2401(4)
10990


So there are 10990 legs on the bus.