Puzzle for January 4, 2010

Welcome Back!

As part of my New Year's Resolutions, I've decided to save pennies. Today I'll save one.
Each day I'll save double the number of pennies as the day before (ie today is one, tomorrow is two,
the next day will be four, etc).

How long until I have a dollar saved?

If I'm 25 now, how old will I be when I save $1000?

How old will I be when I save one million dollars?

See The Solution