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: Problem Solving
Prompt focus: A store sells notebooks for 3 dollars each. If a customer buys 12 or more notebooks, the price drops to 2.50 dollars each for all notebooks purchased. How much does a customer pay for 15 notebooks?
Why the correct answer works
37.50 dollars
Buying 15 notebooks qualifies for the 2.50 dollar price, so 15 times 2.50 is 37.50 dollars.
Why the tempting wrong answer fails
This uses the full 3 dollar price, ignoring the bulk discount that applies at 12 or more.
Plain-language takeaway
Since 15 is at least 12, every notebook costs 2.50 dollars. The total is 15 times 2.50, which equals 37.50 dollars.
Simple analogy
Think of problem solving 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.