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The number of buses running on three routes was recorded for two years. Route R1: 2023 40, 2024 50. Route R2: 2023 60, 2024 72. Route R3: 2023 25, 2024 32. Which route shows the greatest percentage increase from 2023 to 2024?

Competition practiceData & Probability
  • ARoute R2
  • BRoute R1
  • CAll three increases are equal
  • DRoute R3

Step-by-Step Solution

Percentage increase = (rise ÷ 2023 figure) × 100. R1: (10 ÷ 40) × 100 = 25 percent. R2: (12 ÷ 60) × 100 = 20 percent. R3: (7 ÷ 25) × 100 = 28 percent. R3 is the greatest, even though R2 added the most buses in plain numbers.
Answer: D) Route R3

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