Answer:
B. $0.50
Explanation:
We were given the following information:
Books cost $3 each
Ten books will cost:
[tex]\begin{gathered} 3\times10 \\ =30 \\ \\ \therefore\text{\$}30 \end{gathered}[/tex]
Ten books will ordinarily cost $30 whereas we are getting ten books for $25
That means we are saving the sum below:
[tex]\begin{gathered} =30-25 \\ =5 \\ \\ \therefore\text{ \$5} \end{gathered}[/tex]
We will save $5 on ten books.
The amount saved on each book is obtained as shown below:
[tex]\begin{gathered} =\frac{\text{Amount}}{\text{Number of books}} \\ =\frac{5}{10} \\ =0.50 \\ \\ \therefore\text{\$}0.50 \end{gathered}[/tex]
Therefore, you will save $0.50 on each book
Hence, the correct option is B
