A club of 5 members chooses a chair and a different member as deputy. How many different choices of the pair (chair, deputy) are possible?
Answer and explanation
Correct answer: C. 20
- Step 1: Chair: 5 options. Step 2. Deputy: 4 options (not the chair). . Answer: 20. Why not the others: Because the two roles differ, the order matters, so 10 is too few.
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