Final answer:
Option B, which is 5 kg of rice at $16.95, provides the best deal at $3.39 per kilogram, compared to option A, which is 0.5 kg of rice at $1.80 and costs $3.60 per kilogram.
Step-by-step explanation:
To find the best deal on rice, we need to calculate the price per kilogram for each option and compare them. For option A, 0.5 kg of rice at $1.80 means we are paying $1.80 for half a kilogram.
Therefore, to find the cost per kilogram, we double $1.80, which gives us $3.60 per kilogram. In option B, we have 5 kg of rice at $16.95. To find the price per kilogram, we divide $16.95 by 5 kg, resulting in $3.39 per kilogram.
Comparing the two, we see that option B offers a lower price per kilogram of rice at $3.39 compared to option A's $3.60. Therefore, option B is the best deal.