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: If 8 workers can build a wall in 10 days, how many days would it take 5 workers to build the same wall, assuming all workers work at the same rate?
Why the correct answer works
16 days
The job requires 80 worker-days, so 5 workers need 80 divided by 5, which is 16 days.
Why the tempting wrong answer fails
This results from an arithmetic error rather than the inverse proportion.
Plain-language takeaway
The total work is 8 workers times 10 days, which is 80 worker-days. With 5 workers, the number of days is 80 divided by 5, which equals 16 days.
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.