Daily Math Puzzle: 2026-09-08
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2026-09-08
A renowned chef's cookie recipe is famous for its precise instructions, yielding 12 perfectly uniform cookies. The general ingredient list specifies '1/2 cup of chocolate chips'. However, further down in the detailed baking steps, there's a critical instruction: 'For the signature flavor and texture, you must meticulously sprinkle exactly 15 grams of chocolate chips onto the top of each individual cookie before baking.' Given that 1 cup of chocolate chips weighs 150 grams, and you need to scale this recipe to produce 30 cookies, how many cups of chocolate chips will you need to ensure *all* instructions are followed precisely?
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Solution
3.0 cups — The trick here is to identify which instruction dictates the actual amount of chocolate chips used per cookie. While the ingredient list mentions '1/2 cup of chocolate chips' for 12 cookies, the detailed baking steps give a more precise, overriding instruction: 'exactly 15 grams of chocolate chips onto each individual cookie'.
1. First, determine the exact amount of chocolate chips needed per cookie based on the critical instruction: 15 grams/cookie.
2. Next, calculate the total grams of chocolate chips required for 30 cookies: 30 cookies * 15 grams/cookie = 450 grams.
3. Finally, convert this total weight into cups using the provided conversion rate (1 cup = 150 grams): 450 grams / 150 grams/cup = 3 cups.
Simply scaling the '1/2 cup' from the ingredient list (which would yield 1.25 cups for 30 cookies) would lead to an incorrect amount, as it ignores the specific instruction about the exact grams per cookie.
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