When a player bets on the numbers marked as a single wager it is a straight ticket betting. It is the simplest way to play, but many players like to bet more combinations.
A king ticket bet is made when a player chooses a number which is used in all combinations marked.
Combination ticket: The player marks several number groupings and plays combinations of them.
Keno payouts are based on how many numbers the player choses and how many numbers are "hit", multiplied by the proportion of the player's original wager to the “base rate” of the paytable. Usually the more numbers a player chooses and the more numbers hit, the greater the payout is.
The probability that al 20 numbers chosen by you will hit is 1 in 3.5 quintillion.
When all the 20 numbers are known, the winning tickets are paid. The payouts differ in defferent casinos. If you have, for example, a four-spot ticket, you are paid 1:1 if 2 numbers hit, 1:5 if 3 numbers hit and 1:120! if all the 4 numbers hit. But in another casino, the three-number hit might pay and all four 5, and in another the payoffs might be and 0. Because of the variation, no payback percentage is common enough to be called average.

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