This question-specific review guide is tied to the answer reasoning for a PracticeTestVault item. Use it after you answer the question so the review stays focused on what the prompt actually tested.
What this question is testing
Objective: Mathematics: Proportions
Prompt focus: A recipe that serves 4 people requires 6 cups of flour. If the recipe is scaled to serve 10 people, how many cups of flour are needed?
Why the correct answer works
15 cups
The proportion 6 over 4 equals X over 10 gives 4X equals 60, so X equals 15.
Why the tempting wrong answer fails
12 cups would serve 8 people, not 10, at this ratio.
Plain-language takeaway
Set up a proportion: 6 cups per 4 people equals X cups per 10 people. Cross multiply to get 4X equals 60, then divide by 4 to find X equals 15 cups.
Simple analogy
Think of mathematics: proportions like following a short checklist: identify the clue, confirm the rule, and then make the move that fits this exact scenario.
How to review it before a retake
- Underline the command word and name what the question is asking before rereading the choices.
- Compare the correct answer against the closest distractor and write the exact detail that separates them.
- Retest this objective with a fresh question without looking at the rationale first.