Bus routes 27, 37, and 47 all stop at Ferguson Square. Hamish was! sitting time and noted the order in which they arrived. Sometimes more than same time. The order was:On all the routes the buses are scheduled to arrive intervals, and they always keep to the timetable. Which one if the following would explain observed order?

Correct answer: B. The number 27 arrives at 6-minute intervals, the 37 at 10-minute intervals, and the 47 every 20 minutes

  • A. The number 27 arrives at 5-minute intervals, the 37 at 10-minute intervals, and the 47 every 20 minutes
  • B. The number 27 arrives at 6-minute intervals, the 37 at 10-minute intervals, and the 47 every 20 minutes
  • C. The number 27 arrives at 9-minute intervals, the 37 at 15-minute intervals, and the 47 every 40 minutes
  • D. The number 27 arrives at 10-minute intervals, the 37 at 20-minute intervals, and the 47 every 30 minutes

Explanation

The correct answer is Option B. With the number 27 bus arriving every 6 minutes, the number 37 every 10 minutes, and the number 47 every 20 minutes, all buses align every 60 minutes. This allows for the possibility of the observed order. Other options do not provide intervals that align to create a consistent pattern matching the observed order.

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