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What is the primary challenge in coordinating multiple elevators in a building?

easy🧠 Conceptual Q1 of 15
LLD - Design — Elevator System
What is the primary challenge in coordinating multiple elevators in a building?
AMaximizing elevator speed
BIncreasing the number of floors
CReducing elevator size
DMinimizing wait time for passengers
Step-by-Step Solution
Solution:
  1. Step 1: Understand the goal of elevator coordination

    The main goal is to serve passengers efficiently by reducing their wait time.
  2. Step 2: Evaluate other options

    Maximizing speed, reducing size, or increasing floors do not directly address coordination challenges.
  3. Final Answer:

    Minimizing wait time for passengers -> Option D
  4. Quick Check:

    Primary challenge = Minimizing wait time [OK]
Quick Trick: Focus on passenger experience, not elevator specs [OK]
Common Mistakes:
MISTAKES
  • Confusing speed with coordination
  • Thinking size affects coordination
  • Ignoring passenger wait time

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