Does having a 10/1 and 9/1 shot make a 90/1 double?

Does anyone have a website that calculates odds?</p>

The website cant be linked to gambling either as the filter in work wont allow it.</p>

Ta!</p>

 

If you have a &pound;1 on a 10-1 and a 9-1 double it would pay &pound;110

 

The stake is inclusive.

so a 5&pound; double would be &pound;500?

 

Don't know...

... but I do remember our bet though....</p>

&pound;5 do I get the draw ??</p>

Dave</p>

 

^{<font face="Times New Roman" size="3">No, 10 - 1 means you have a 1 in 11 chance of winning, similarly 9 - 1 means you have a 1 in 10 chance. To get the probability of the double you multiply, 11 x 10 giving 110, or a 1 in 110 chance. Thus the odds are 109 - 1 for the double.</font>}

 

You do get the draw!

However we will win , so no bother there.</p>

</p>

 

I have to take issue with that

"10 - 1 means you have a 1 in 11 chance of winning"

Boomakers odds have nothing to do with the probability of winning. They are influenced by the amount of money a bookmaker will have to pay out on the give race or game if the out come you have chosen happens, versus the payout of all the other outcomes plus the total stake. If somebody bungs a load of money on an outsider it's odds reduce. The chance of winning has not changed ... the book is just adjusting the odds to ensure that whatever the outcome of the event HE WINS.

 

Your calcultaion of the odds is completely correct nt

 

Your spelling of calculation is completely cack.

 

RE: I have to take issue with that

I wrote the theory, you wrote the practice. In theory bookmakers booksshould add up to 1, e.g. if 10 horses in a race all have an equal chance then the odds for each should by 9 - 1, or 1 in 10 (1/10). Add up the total of 1/10's - 10 x 1/10 gives 1. In practice books always add up to more than 1, so the bookie will win on average. So it all adds up to one thing - it's a mugs game!</p>

 

FACT of the day ...

... my first ever job was as a Trainee Manager for Bill Hills.
Have that.

Erm - and MOTD is all rubbish & that.
There isn't even a clock to tell you when stuff happened.
And all those people they have on there are awful - nowhere near as good as John Barnes.
The music is okay though ... dert, dert, dert, dert, der, der, der, der, der ...

I think you'll find my hypothesis to be accurate.

 

I just take the money. nt

 

Aye.

You sound like Mrs Ponty on the TARN Hall steps.

Someone in my house was dancing to the MOTD theme tune yesterday morning.
It wasn't quite funny enough.

If I'm honest - I have only one criticism of MOTD (apart from it now being called MOTD by a spacky generation) ... it's that the set looks brown & boring.
From the other end of the room it looks like it's being filmed in a 70's Indian Restaurant.

Apart from that - it's the best programme on telly.
But it's ranked 312th in my house owing to the nature of my DVD collection.

 

What bfcbub says is right, a £5 double at 10/1 and 9/1 pays £550. I think it goes like this, (order doesn't matter):-

£5 to win at 10/1 comes in at £50 plus stake back of £5, so total on next bet is £55. £55 to win at 9/1 is £495 plus stake back of £55 makes £550.