which is the better buy? 6 - kilogram bag of rice for $18.67 8 - kilogram bag of rice for $24.40

which is the better buy? 6 - kilogram bag of rice for $18.67 8 - kilogram bag of rice for $24.40
Answer
Explanation:
Step1: Calculate unit - price of 6 - kg bag
To find the unit - price of the 6 - kilogram bag of rice, divide the total price by the number of kilograms. The formula is $unit\ price=\frac{total\ price}{quantity}$. So, for the 6 - kg bag, the unit - price $u_1=\frac{18.67}{6}\approx3.11$ (rounded to two decimal places).
Step2: Calculate unit - price of 8 - kg bag
For the 8 - kilogram bag of rice, use the same formula. The unit - price $u_2 = \frac{24.40}{8}=3.05$.
Step3: Compare unit - prices
Compare the two unit - prices. Since $3.05<3.11$, the 8 - kilogram bag has a lower unit - price.
Answer:
The 8 - kilogram bag of rice for $24.40 is the better buy.