Roulette, blackjack and table games
Why can a blackjack with two cards pay 6:5 instead of 3:2?
Direct answer
At 6:5, a natural blackjack wins $12 on a $10 bet; at 3:2 it wins $15. The 6:5 payout is $3 worse on that result.
How to use this answer
This answer is based on the mathematical principle or published rule identified in the source below. If the question involves a live betting market, confirm its settlement definition before applying it to a specific bet.
It is a less favourable payout rule: a $10 natural wins $12 at 6:5 rather than $15 at 3:2.
Separate the game’s mathematical probabilities from the casino’s house procedure. The odds may be calculable even where split, surrender, side-bet or payout policies differ between tables.