10990.
museclio was the first to get it right-- and wins the prize!
dave_lister,
macdobhran,
unipride,
i_am_entropy also got the correct number.
cerunnous had the right figure-- and was a wise guy! Special cookies for you.
hthottie not only got the right answer, but she also provided the "how to" below, saving me from having to copy it from my notes. Super special cookies for you, hon!
webqatch was just a smart @ss. No cookies for you! ~grins~
7 girls at 2 legs each = 14 legs
7 girls at 7 backpacks each = 49
49 backpacks with 7 cats each = 343 cats
343 cats with 7 kittens each = 2401 kittens
343 cats at 4 legs each = 1372 legs
2401 kittens at 4 legs each = 9604 legs
14 girl legs + 1372 cat legs + 9604 kitten legs = 10,990 legs.