10,990 legs on the bus
Exactly! I knew someone would get it.
Answer:7 people x 2 legs each =
14 legs7 people x 7 backpacks = 49 backpacks
49 backpacks x 7 cats = 343 cats x 4 legs =
1372 legs343 cats x 7 kittens = 2401 kittens x 4 legs =
9604 legs9604 +
1372 +
14 =
10,990 legs.