I think rather than giving numerical problem we should focus on theoretical because it's bit tough to put up the solution of numerical so better to discuss the conceptual question and I request you to come up with excellent questions I shall be grateful to you...

Question

anonymous · Answer

How many numbers are there?

anonymous · Answer

Do numbers exist?

anonymous · Answer

Are numbers invented or discovered?

ghazi · Answer

that's really cool..i like it...well about numbers there is a lot to say but the only thing that i would type here is invented and it is such an abstract thing that can explain many phenomenon of universe in my view every event of universe

ghazi · Answer

and yes numbers are invented

ghazi · Answer

and as far as how many is concerned the only answer is infinity that is not defined exactly