Final answer:
After calculating the cost per gram of saffron as $12.98, it's determined that approximately 1.16 grams can be purchased for $15.00, which does not match any of the provided answer choices.
Step-by-step explanation:
To determine how many grams of saffron can be purchased for $15.00 when saffron costs $368.00 per ounce, we need to know how many grams are equivalent to an ounce and how to calculate the price per gram. There are 28.35 grams in an ounce.
First, we calculate the cost per gram:
Cost per gram = $368.00 per ounce / 28.35 grams per ounce
Cost per gram = $12.98 approximately (rounded to two decimal places)
Now, we use the unit price to find how many grams we get for $15.00:
Grams = $15.00 / $12.98 per gram
Grams = 1.16 approximately (rounded to two decimal places)
None of the options provided (16 grams, 30 grams, 40 grams, 50 grams) match the calculated amount. Therefore, it appears there's an issue with the question since it doesn't provide a correct answer choice based on this calculation.