Infinity and chances of chosing something.

Hello,

If a hotel has an infinate number of rooms which weren't numbered, and
you had to guess which room was yours, what would the odds be of
getting it right first time?

If it's one in infinity of getting it right but also one in infinity of
getting it wrong, surely that is the same as a straight 50/50 split?

So I'd only have to try two doors and one would be my room?

I really don't know anything about maths other than how to work out my
change due at a checkout, so please be gentle!

Thanks in adavance for any help/ridicule,

Roger Melly.

.

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