2. Which expression is equivalent to 20+64
1 answer:
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Solution:
This problem is a permutation because the order matters here. This means that choosing A as King, B as Knight, C as Bishop and D as Rook results in a different arrangement from B as King, A as Knight, D as Bishop and C as Rook. We would count them both because in the first case A is King, but in the second case A is Knight.
Therefore, the possible number of ways are given below:
Hence there will be 93024 ways 19 members of a chess club fill the offices of King, Knight, Bishop, and Rook.