This is a 5th grade math problem.

. This is a real maths problem so don't say that a bus has no legs. The bus driver is not part of the equation.it is not a trick question.

There are 7 girls in a bus.

Each girl has 7 backpacks .

In each backpack, there are 7 big cats.

For every big cat there are 7 little cats.

Question: How many legs are there on the bus?

I'll post the answer Tomorrow ;)

(Hmm.. no suitable Prefix..)