Ask Jack 4/14/10
Q: Every month, a girl gets allowance. Assume last year she had no money, and kept it up to now. Then she spends 1/2 of her money on clothes, then 1/3 of the remaining money on games, and then 1/4 of the remaining money on toys. After she bought all of that, she had $7777 left. Assuming she only gets money by allowance, how much money does she earn every month?
Stephen Hawking — London, England
A: Mr. Hawking, you really need to quit trying to get us to do your work for you. You’d think that being a world-renowned theoretical physicist that you’d be able to work out your own math problems, but apparently we’re wrong. We’ll answer just this one for you so you get off of our back:
Now go do something with gamma rays or something.