alleryListing every arrangement by hand is rejected as a method because it is:
ATextual
BTactical
CTedious
DTempting
Answer & Solution
Correct answer: C. Tedious
1. The lock example could in principle be solved by writing every case out.
2. The number of possible sequences may be large.
3. That method will be tedious.
4. The counting techniques exist precisely to avoid it.
_Source: syllabus Mathematics, Ch 6 'Permutations and Combinations'_
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