O-LevelAdditional MathematicsPermutations and combinationsMay/June 2018Paper 2 Q35 Marks
A 7-character password is to be selected from the 12 characters shown in the table. Each character may be used only once. Characters Upper-case letters | A | B | C | D Lower-case letters | e | f | g | h Digits | 1 | 2 | 3 | 4 Find the number of different passwords
✓ Correct Answer
The correct answer is —. This question tests the candidate's understanding of permutations and combinations within the Additional Mathematicssyllabus. The examiner's mark scheme requires...
📋 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...
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