Question commentary

Question Inspired by Contents
Qn 2101 2010 P2 Q8 Forming a number:
  • multiplication and addition principles
  • permutations and combinations
  • arrangement in a line
  • repetitions allowed/not allowed
Qn 2102 2008 P2 Q10 Forming groups:
  • multiplication and addition principles
  • combinations/choosing
  • complements
Qn 2103 2007 P2 Q9 Arranging people:
  • multiplication principle
  • permutations
  • arrangement in a line/circle
  • grouping methods and alternating arrangements
Qn 2104 2009 P2 Q8 Forming words:
  • multiplication and addition principles
  • permutation and combinations
  • repetitions and indentical objects

Our collection of questions, inspired by the TYS questions from 2007-2010, cover the majority of the ideas that have come out since.

That said, links between this topic to probability and DRV should be explored in more detail.

TYS analysis

Year Question Math Atlas Comments
2007 P2 Q9 Qn 2103 Qn 2103 is directly inspired by this question
2008 P2 Q10 Qn 2102 Qn 2102 is directly inspired by this question
2009 P2 Q8 Qn 2104 Qn 2104 is directly inspired by this question
2010 P2 Q8 Qn 2101 Qn 2101 is directly inspired by this question
2011 P2 Q11 Qn 2102 This question shares some similarity with Qn 2102, but the ideas will probably be further explored in a future question on the DRV topic
2012 P2 Q7 Qn 2103 This question shares some similarity with Qn 2103, but the ideas about using the union formula should be further explored, especially in the probability topic
2013 P2 Q11 - This question type should be further explored in the future
2014 P2 Q6 Qn 2102 This question shares some similarity with Qn 2102, but the ideas about having a player who can play two positions should be further explored
2015 P2 Q11 Qn 2104 This question shares some similarity with Qn 2104, but the ideas about using a Venn diagram should be further explored
2016 P2 Q7 Qn 2102
Qn 2103 		Choosing people, rearrangement in a circle
2017 Specimen
P2 Q5 		Qn 2102
Qn 2103 		Choosing people, rearrangement in a line
2017 P2 Q6 Qn 2103 This question shares some similarity with Qn 2103, but the ideas should be further explored
2018 P2 Q8 Qn 2102 This question shares some similarity with Qn 2102, but the ideas will probably be further explored in a future question on the DRV topic
2019 P2 Q6c Qn 2102 Combinations/choosing
2020 P2 Q8 Qn 2102 Combinations/choosing