Question

On Monday the price for bottled water was 5 bottles for $10.90. On Saturdaythe price was 4 bottles for $8.56. Which day had the higher unit price?

Answer 1

On monday price is $10.90 for 5 bottles.

Then one bottles price is:

$\begin{gathered} 5\text{ bottles price is 10.90} \\ 1\text{ bottles price is }\frac{10.90}{5} \\ =2.18 \end{gathered}$

On monday price is $2.18

On saturday price is $8.56 for 4 bottles

then one bottles price is:

$\begin{gathered} 4\text{ bottles price is 8.56} \\ 1\text{ bottles price = }\frac{8.56}{4} \\ =2.14 \end{gathered}$

On saturday price is $2.14

So on monday unit price is heigher.