O-LevelComputer ScienceAlgorithm design and problem-solvingOct/Nov 2025Paper 2 Q56 Marks
A program has been written in pseudocode to input five numbers between 1 and 900 inclusive and store the highest number and the lowest number entered. 01 Lowest ← 900 02 Highest ← 1 03 FOR Count ← 1 ΤΟ 5 04 INPUT Number 05 IF Number < Lowest 06 THEN 07 Lowest ← Number 08 ELSE 09 IF Number > Highest 10 THEN 11 Highest ← Number 12 ENDIF 13 ENDIF 14 NEXT Count
📋 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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