For these 2 draws I will use a covering of 3 out of 3 in 2 small amounts of numbers, so I will not miss any price if I got the minimum quantity of 3 numbers in the selection.
1 wheel of 8 numbers, 4 combinations, and 3 out of 3 guaranteed.
The numbers:
04 09 10 17 25 26 36 37 :finger:
The wheel:
Parameters: (v,k,t) = (8,6,3)
Number of blocks: 4
Method of construction: Lex covering
Blocks of the covering:
1 2 3 4 5 6
1 2 3 4 7 8
1 2 5 6 7 8
3 4 5 6 7 8
1 wheel of 12 numbers, 15 combinations, and 3 out of 3 guaranteed.
The numbers:
01 05 06 08 15 22 28 33 40 43 47 48
The wheel:
Parameters: (v,k,t) = (12,6,3)
Number of blocks: 15
Method of construction: Lex covering
Blocks of the covering:
1 2 3 4 5 6
1 2 7 8 9 10
3 4 7 8 11 12
5 6 9 10 11 12
1 2 3 9 11 12
1 4 5 7 10 11
2 4 6 8 10 12
3 5 6 7 8 9
1 3 6 7 10 12
1 4 5 8 9 12
2 3 5 8 10 11
2 4 6 7 9 11
1 3 6 8 9 11
2 3 5 7 9 12
1 2 3 4 9 10
The total cost for this play is $10 per draw (2 draws) = $20.
Babar 
1 wheel of 8 numbers, 4 combinations, and 3 out of 3 guaranteed.
The numbers:
The wheel:
Parameters: (v,k,t) = (8,6,3)
Number of blocks: 4
Method of construction: Lex covering
Blocks of the covering:
1 2 3 4 5 6
1 2 3 4 7 8
1 2 5 6 7 8
3 4 5 6 7 8
1 wheel of 12 numbers, 15 combinations, and 3 out of 3 guaranteed.
The numbers:
01 05 06 08 15 22 28 33 40 43 47 48
The wheel:
Parameters: (v,k,t) = (12,6,3)
Number of blocks: 15
Method of construction: Lex covering
Blocks of the covering:
1 2 3 4 5 6
1 2 7 8 9 10
3 4 7 8 11 12
5 6 9 10 11 12
1 2 3 9 11 12
1 4 5 7 10 11
2 4 6 8 10 12
3 5 6 7 8 9
1 3 6 7 10 12
1 4 5 8 9 12
2 3 5 8 10 11
2 4 6 7 9 11
1 3 6 8 9 11
2 3 5 7 9 12
1 2 3 4 9 10
The total cost for this play is $10 per draw (2 draws) = $20.
Babar 
04 07 10 27 38 42 


