Adam is paid $4 per hour and his expected output is 500 units per week. He is also paid a bonus $1 for every 20 perfect units made above the total of 500. In one week he worked for 40 hours and made 880 units, but 40 were faulty and were scrapped. How much was Adam paid for the week?
✓ Correct Answer
The correct answer is A: $177
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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