A-LevelEconomicsThe Price System and the MicroeconomyOct/Nov 2018Paper 3 Q61 Mark
The table shows the total revenue and marginal cost of a firm at different levels of production. production (tonnes) | total revenue ($) | marginal cost ($) ---|---|--- 2 | 70 | 15 3 | 120 | 20 4 | 160 | 25 5 | 190 | 30 6 | 220 | 40 7 | 240 | Within which output range will the firm's profits be maximised? A 2-3 tonnes B 3-4 tonnes C 5-6 tonnes D 6-7 tonnes
📋 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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