To find the cost for 3 chicken wings, we first need to determine the cost per wing. If Arun bought 10 chicken wings for $10.00, the cost per wing is:
\[ \text{Cost per wing} = \frac{10.00}{10} = 1.00 \]
Now, to find the cost for 3 wings:
\[ \text{Cost for 3 wings} = 3 \times 1.00 = 3.00 \]
Therefore, it would cost $3.00 for 3 chicken wings.