The ground floor plan of a building has \(3\) entrances. If each entrance can be connected by stairs or an elevator externally, in how many ways can a person enter the building through the entrance?
Show Hint
- \(03\)
- \(06\)
- \(09\)
- \(12\)
The Correct Option is B
Solution and Explanation
Step 1: Identify choices at each entrance
Number of entrances \(=3\)
For each entrance, a person can use:
Stairs, or
Elevator So, number of choices per entrance \(=2\).
Step 2: Apply multiplication principle \[ \text{Total ways} = 3 \times 2 = 6 \] Conclusion: A person can enter the building in \(\boxed{6}\) different ways.
Final Answer: \(\boxed{6}\)
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