O-LevelAdditional MathematicsDifferentiation and integrationOct/Nov 2013Paper 2 Q78 Marks
The diagram shows a box in the shape of a cuboid with a square cross-section of side x cm. The volume of the box is 3500cm³. Four pieces of tape are fastened round the box as shown. The pieces of tape are parallel to the edges of the box. [Figure showing a cuboid with square cross-section 'x cm' and length 'L']
📋 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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