Originally Posted by bear

sorry brother its wrong i checked your solution and its mind boggling i couldnt find the mistake may be you did a tricky mistake . 9620 is wrong .

but i got a simpler solution to the problem.

see ,


no. of big cats = 7^3 = ( 7*7*7) = 343 .
no. of little cats = 7^4 = ( 7*7*7*7) = 2401 .
total no. of cats = 343 + 2401 = 2774 . ( either big or small cat is a cat)

7 girls have 7*2 =14 human legs
2774 cats have 2774 * 4 = 10976 legs .

adding all legs .

14 + 10976 = 10990 legs in total.