Help with the maths on a bet
My book is offering a bet for any 3 out of 4 teams to win their game tomorrow. They're giving $3 odds (boosted from $2.30) my initial instinct is that it's a terrible bet but don't know the maths to actually work out a good price based off the individual odds.
The individual odds to win are:
$1.60
$1.83
$1.90
$2.10
Can anyone help me out with this?