To find the cost of each chocolate bar, we first need to set up the equation.
The total cost of the chocolate bars includes the delivery fee and the cost of the chocolate bars themselves. The total cost of the chocolate bars is given as $745, and the delivery fee is $25. Therefore, the cost of the chocolate bars alone is:
\[ \text{Cost of chocolate bars} = \text{Total cost} - \text{Delivery fee} \]
So, we can say:
\[ \text{Cost of chocolate bars} = 745 - 25 = 720 \]
Since they purchased 1,200 chocolate bars, we can set up the equation for the cost of each chocolate bar \( c \) as follows:
\[ 1200c = 720 \]
Now, we can solve for \( c \):
\[ c = \frac{720}{1200} \]
Calculating this gives:
\[ c = 0.6 \]
Thus, the cost of each chocolate bar is:
Cost of each chocolate bar: $0.60