The type of bills on the table are either $1 and $2 , or $3 and $0
To interprete the question, we need to look at it critically.
From the question, it was stated that there are 2 bills on the table and one of the bills is not a $ 1 bill, this means that the bill that is not $ 1 bill could be $2 and $3 since the sum of the bill is $3
If the first bill is $2, then the second bill will be 3-2 = $1
if the first bill is $3 , then the second bill will be
3-3 = $0
Therefore, the type of bills on the table are either $1 and $2 , or $3 and $0