A 500-gram bag of granola costs $4, and a 2-kilogram bag of granola costs $15. What is the least expensive way to buy 2,000 grams of granola? Explain.
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You pay $4 for 500 g so you will pay $4 x (2,000/500) = 4 x 4 = $16 if you buy 4 bags. You can buy it in 2,000 g bags for $15. Which do you want to do?
So what’s the answer
To determine the least expensive way to buy 2,000 grams of granola, we need to compare the prices of the two options available: a 500-gram bag and a 2-kilogram bag.
Option 1: Buying four 500-gram bags.
The cost of one 500-gram bag is $4. Therefore, the cost of buying four 500-gram bags would be 4 * 4 = $16.
Option 2: Buying one 2-kilogram bag.
The cost of one 2-kilogram bag is $15.
Comparing the two options, we can see that option 2 is cheaper. Therefore, the least expensive way to buy 2,000 grams of granola is by purchasing one 2-kilogram bag for $15.