To find out how much less the sale price of the black coat is than the sale price of the blue coat, we first need to calculate the sale prices of both coats.
Step 1: Calculate the sale price of the blue coat.
- Regular price of blue coat = $48
- Discount = 25% of $48
- Amount of discount = 0.25 * 48 = $12
Now, subtract the discount from the original price:
- Sale price of blue coat = $48 - $12 = $36
Step 2: Calculate the sale price of the black coat.
- Regular price of black coat = $56
- Discount = 40% of $56
- Amount of discount = 0.40 * 56 = $22.40
Now, subtract the discount from the original price:
- Sale price of black coat = $56 - $22.40 = $33.60
Step 3: Calculate how much less the sale price of the black coat is than that of the blue coat.
- Difference in sale prices = Sale price of blue coat - Sale price of black coat
- Difference = $36 - $33.60 = $2.40
Therefore, the sale price of the black coat is $2.40 less than the sale price of the blue coat.
The answer is D. $2.40.