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2024 RVHS H1 Q7

2024 RVHS H1 Q7

5 marks

Find the number of ways in which

  1. \(5\) people can be arranged in \(5\) seats,[1]
  2. \(3\) people can be arranged in \(4\) seats.[1]

In a block of \(8\) seats, \(4\) are in row \(A\) and \(4\) are in row \(B\). Find the number of ways of arranging \(8\) people in the \(8\) seats given that \(3\) specified people must be in row \(A\).[3]

Solution:

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Answer:(i) \(120\). (ii) \(24\). Final arrangement: \(2880\).

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