A transit agency studied passenger counts on three routes: Route A carried 12,000 riders with an on-time rate of 92%; Route B carried 18,000 riders with an on-time rate of 85%; Route C carried 10,000 riders with an on-time rate of 90%. What was the overall on-time rate across all 40,000 riders?
Answer and explanation
Correct answer: A. 88.35%
- Step 1: Calculate total on-time passengers: . Step 2. Divide by 40,000: . Answer: 88.35%. Why not the others: and are simple unweighted averages that disregard Route B's larger passenger volume; exceeds realistic weighted performance.
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