There are 1 to 24 numbers (1,2,3...24). How many possible combinations of 12 combine numbers will result with a sum of 146 when you add those 12 numbers?
So meaning you have to combine 12 numbers from 1 to 24 and the total must be 146. You cannot use the same number twice.
Let's say (1+2+3+4+5........+4) this is not possible because you already used number 4.