There’s an old nursery rhyme that’s actually a nice little puzzle. Can you calculate the answer posed by the rhyme?

 

As I was going to St. Ives,

I crossed the path of seven wives,

Every wife had seven sacks,

Every sack had seven cats,

Every cat had seven kittens,

Kittens, cats, sacks, wives,

How many were leaving St. Ives?

 

Answer on next page.