12 September, 2009

The greatest math problem ever. Part 2.

As a comment to one of my posts, Dave proposed the following puzzle:

1
11
21
1211
111221

what's the next line?

14 comments:

Charles Wells said...

2241

Daniel Lemire said...

This was was easy. Just read them out loud.

Anonymous said...

312211

Iv

Lemeshko said...

I see that you guys have got different answers to the problem... :)

Ivy Rose said...

So? What's yours?

Lemeshko said...

Dear Ivy, I don't have any answer yet. :)

And what is yours?

Ivy Rose said...

312211

Ivana = Iv = Ivy :)

Login failed before.

Lemeshko said...

Sorry about that, Ivana.

Anonymous said...

Oh this is supposed to be a problem they present you with at your job interview at Google...

Oh and the answer is
312211

Anonymous said...

Hmm..im fr0m malaysia n n0t s0 bright..c0uld u tell me h0w d0 u get the answer?

Anonymous said...

1111211122 is the answer...

suraj said...

312211 i solved it

suraj said...

312211

Anonymous said...

You can’t have 3, here. Look the problem end to begin to find the solution. It’s a L-System.