A-LevelComputer ScienceBoolean AlgebraOct/Nov 2022Paper 2 Q54 Marks
5 Examine the following pseudocode. IF A = TRUE THEN IF B = TRUE THEN IF C = TRUE THEN CALL Sub1() ELSE CALL Sub2() ENDIF ENDIF ELSE IF B = TRUE THEN IF C = TRUE THEN CALL Sub4() ELSE CALL Sub3() ENDIF ELSE IF C = FALSE THEN CALL Sub3() ELSE CALL Sub4() ENDIF ENDIF ENDIF A programmer wants to re-write the pseudocode as four separate IF...THEN...ENDIF statements, each containing a single CALL statement. This involves writing a single, simplified logic expression as the condition in each statement. Write the amended pseudocode. 1 2 3 4
📋 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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