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A bus depot's record for last month shows, for each of four routes, the trips completed and the trips cancelled: route A, 620 completed and 30 cancelled; route B, 400 completed and 40 cancelled; route C, 300 completed and 10 cancelled; route D, 480 completed and 32 cancelled. Every trip the depot planned was either completed or cancelled. Which of the following is most strongly supported?

Competition practiceLogical / Critical
  • ARoute B had both the smallest number of trips planned and the largest share of them cancelled
  • BRoute C is the route on which passengers wait longest for a bus
  • COf the four routes, route B was the one on which the largest share of the planned trips was cancelled
  • DRoute A had more cancellations than route D and so a higher rate of cancellation than route D

Step-by-Step Solution

Planned trips are 650, 440, 310 and 512, giving cancellation shares of about 4.6, 9.1, 3.2 and 6.3 per cent, so route B leads on share. Route C, not B, had the fewest trips planned at 310, which defeats the first option; route A had 30 cancellations against route D's 32, so the fourth option is wrong on its own facts; and waiting time is nowhere in the record.
Answer: C) Of the four routes, route B was the one on which the largest share of the planned trips was cancelled

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