Calculate 20% of $3000: Money Distribution Problem

To solve the problem, we will calculate the amount that William will receive by following these steps:

• Step 1: Convert the percentage to a decimal by dividing by 100. Since William's portion is 20%, convert it to decimal: $0.20$.

• Step 2: Multiply the total amount by this decimal to find William's share: $0.20 \times 3000$.

Now, carrying out the multiplication:
$0.20 \times 3000 = 600$
Thus, William will receive \600\).

Therefore, the solution to the problem is $600$, which corresponds to choice 3 in the options provided.