[Winner4Me]

Can any one explain this to me.
Am i right in thinking i can place a bet (Treble E/W) and i will win if the 3 horses i pick come 1st 2nd or 3rd?

Bet Type	No.of bets	Stake Per Line	E/W

Single	3
Treble 845.00	1
Trixie	4
Patent	7

If any one can enlighten me please do.