It says in that mathematical calculation that if one had 10 tries of 5 bet lots, then the chance of hitting 3 from 5 is 18.11%

So we had a difference .61%

If you just have one go of 5 bets, then your chance of hitting 3 wins is just 1.8%

We were assuming that you were going to have more than just one go at 3 wins from 5 bets.

You wished for a prompt reply to the question.
You received a succinct response.
Its the answer you don't like, even though its correct in essence.

I'm sorry you feel offended by that answer.
We were trying to help you with a prompt answer without the complicated waffle.

Both answers are correct.
Why not just take the answer that upsets you the least.

Now that you have the percentages , all you have to do now is work out how to make a quid out of it .

There is an answer to that also.

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Cheers.