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CAIE A-Level Mathematics AS 5.2.1 Permutations and Combinations Questions

Practise counting arrangements and selections using permutations, combinations and restrictions.

Syllabus
2028–2030
Course
Mathematics 9709
Level
AS

Exam points

  • calculate permutations and combinations
  • count arrangements and selections with repetition or restrictions
  • model committee and team-selection problems using counting principles

CAIE A-Level Mathematics AS 5.2.1 Permutations and Combinations Questions question 1

[Maximum number: 2]

Raman and Sanjay are members of a quiz team which has 9 members in total. Two photographs of the quiz team are to be taken.

For the first photograph, the 9 members will stand in a line.

For the second photograph, the members will stand in two rows, with 5 in the back row and 4 in the front row.

In how many different ways can the 9 members be divided into a group of 5 and a group of 4?

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